Home / 10,187.49-15,281.24-3,613.68

Finding the Fourth Proportional to 10,187.49, 15,281.24 and 3,613.68

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Solution

The fourth proportional to 10,187.49, 15,281.24 and 3,613.68 is: 5,420.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,187.49 : 15,281.24 = 3,613.68 : x
  2. Step 2: Convert to fraction form
    10,187.49/15,281.24 = 3,613.68/x
  3. Step 3: Cross multiply
    10,187.49x = 15,281.24 × 3,613.68
  4. Step 4: Simplify right side
    10,187.49x = 55,221,430.10
  5. Step 5: Solve for x
    x = 55,221,430.10/10,187.49
  6. Step 6: Final answer
    x = 5,420.51

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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.