Home / 18,489.45-25,517.69-10,424.66

Finding the Fourth Proportional to 18,489.45, 25,517.69 and 10,424.66

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Solution

The fourth proportional to 18,489.45, 25,517.69 and 10,424.66 is: 14,387.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489.45 : 25,517.69 = 10,424.66 : x
  2. Step 2: Convert to fraction form
    18,489.45/25,517.69 = 10,424.66/x
  3. Step 3: Cross multiply
    18,489.45x = 25,517.69 × 10,424.66
  4. Step 4: Simplify right side
    18,489.45x = 266,013,146.64
  5. Step 5: Solve for x
    x = 266,013,146.64/18,489.45
  6. Step 6: Final answer
    x = 14,387.29

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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.