Home / 15,742.13-23,613.20-5,209.31

Finding the Fourth Proportional to 15,742.13, 23,613.20 and 5,209.31

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Solution

The fourth proportional to 15,742.13, 23,613.20 and 5,209.31 is: 7,813.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,742.13 : 23,613.20 = 5,209.31 : x
  2. Step 2: Convert to fraction form
    15,742.13/23,613.20 = 5,209.31/x
  3. Step 3: Cross multiply
    15,742.13x = 23,613.20 × 5,209.31
  4. Step 4: Simplify right side
    15,742.13x = 123,008,334.78
  5. Step 5: Solve for x
    x = 123,008,334.78/15,742.13
  6. Step 6: Final answer
    x = 7,813.96

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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.