Home / 15,102.80-22,654.20-5,242.10

Finding the Fourth Proportional to 15,102.80, 22,654.20 and 5,242.10

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Solution

The fourth proportional to 15,102.80, 22,654.20 and 5,242.10 is: 7,863.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,102.80 : 22,654.20 = 5,242.10 : x
  2. Step 2: Convert to fraction form
    15,102.80/22,654.20 = 5,242.10/x
  3. Step 3: Cross multiply
    15,102.80x = 22,654.20 × 5,242.10
  4. Step 4: Simplify right side
    15,102.80x = 118,755,581.82
  5. Step 5: Solve for x
    x = 118,755,581.82/15,102.80
  6. Step 6: Final answer
    x = 7,863.15

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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.