Home / 7,521.12-10,385.55-4,867.56

Finding the Fourth Proportional to 7,521.12, 10,385.55 and 4,867.56

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Solution

The fourth proportional to 7,521.12, 10,385.55 and 4,867.56 is: 6,721.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,521.12 : 10,385.55 = 4,867.56 : x
  2. Step 2: Convert to fraction form
    7,521.12/10,385.55 = 4,867.56/x
  3. Step 3: Cross multiply
    7,521.12x = 10,385.55 × 4,867.56
  4. Step 4: Simplify right side
    7,521.12x = 50,552,287.76
  5. Step 5: Solve for x
    x = 50,552,287.76/7,521.12
  6. Step 6: Final answer
    x = 6,721.38

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Find fourth proportional to 3,760.56, 5,192.78 and 2,433.78
Half scale
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Double scale
Find fourth proportional to 7,522.12, 10,386.93 and 4,868.56
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.