Home / 15,397.20-23,109.30-9,149.40

Finding the Fourth Proportional to 15,397.20, 23,109.30 and 9,149.40

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Solution

The fourth proportional to 15,397.20, 23,109.30 and 9,149.40 is: 13,732.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,397.20 : 23,109.30 = 9,149.40 : x
  2. Step 2: Convert to fraction form
    15,397.20/23,109.30 = 9,149.40/x
  3. Step 3: Cross multiply
    15,397.20x = 23,109.30 × 9,149.40
  4. Step 4: Simplify right side
    15,397.20x = 211,436,229.42
  5. Step 5: Solve for x
    x = 211,436,229.42/15,397.20
  6. Step 6: Final answer
    x = 13,732.12

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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.