Home / 10,146.25-15,219.38-3,571.68

Finding the Fourth Proportional to 10,146.25, 15,219.38 and 3,571.68

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Solution

The fourth proportional to 10,146.25, 15,219.38 and 3,571.68 is: 5,357.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,146.25 : 15,219.38 = 3,571.68 : x
  2. Step 2: Convert to fraction form
    10,146.25/15,219.38 = 3,571.68/x
  3. Step 3: Cross multiply
    10,146.25x = 15,219.38 × 3,571.68
  4. Step 4: Simplify right side
    10,146.25x = 54,358,755.16
  5. Step 5: Solve for x
    x = 54,358,755.16/10,146.25
  6. Step 6: Final answer
    x = 5,357.52

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Double scale
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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.