Home / 9,678.24-14,517.12-5,783.76

Finding the Fourth Proportional to 9,678.24, 14,517.12 and 5,783.76

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Solution

The fourth proportional to 9,678.24, 14,517.12 and 5,783.76 is: 8,675.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.24 : 14,517.12 = 5,783.76 : x
  2. Step 2: Convert to fraction form
    9,678.24/14,517.12 = 5,783.76/x
  3. Step 3: Cross multiply
    9,678.24x = 14,517.12 × 5,783.76
  4. Step 4: Simplify right side
    9,678.24x = 83,963,537.97
  5. Step 5: Solve for x
    x = 83,963,537.97/9,678.24
  6. Step 6: Final answer
    x = 8,675.50

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Find fourth proportional to 4,839.12, 7,258.56 and 2,891.88
Half scale
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Double scale
Find fourth proportional to 9,679.24, 14,518.62 and 5,784.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.