Home / 12,151.62-18,209.21-9,374.13

Finding the Fourth Proportional to 12,151.62, 18,209.21 and 9,374.13

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Solution

The fourth proportional to 12,151.62, 18,209.21 and 9,374.13 is: 14,047.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151.62 : 18,209.21 = 9,374.13 : x
  2. Step 2: Convert to fraction form
    12,151.62/18,209.21 = 9,374.13/x
  3. Step 3: Cross multiply
    12,151.62x = 18,209.21 × 9,374.13
  4. Step 4: Simplify right side
    12,151.62x = 170,695,454.87
  5. Step 5: Solve for x
    x = 170,695,454.87/12,151.62
  6. Step 6: Final answer
    x = 14,047.14

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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.