Home / 12,572.24-17,387.28-10,997.60

Finding the Fourth Proportional to 12,572.24, 17,387.28 and 10,997.60

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Solution

The fourth proportional to 12,572.24, 17,387.28 and 10,997.60 is: 15,209.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572.24 : 17,387.28 = 10,997.60 : x
  2. Step 2: Convert to fraction form
    12,572.24/17,387.28 = 10,997.60/x
  3. Step 3: Cross multiply
    12,572.24x = 17,387.28 × 10,997.60
  4. Step 4: Simplify right side
    12,572.24x = 191,218,350.53
  5. Step 5: Solve for x
    x = 191,218,350.53/12,572.24
  6. Step 6: Final answer
    x = 15,209.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.