Home / 18,500.38-25,531.13-10,116.88

Finding the Fourth Proportional to 18,500.38, 25,531.13 and 10,116.88

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Solution

The fourth proportional to 18,500.38, 25,531.13 and 10,116.88 is: 13,961.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,500.38 : 25,531.13 = 10,116.88 : x
  2. Step 2: Convert to fraction form
    18,500.38/25,531.13 = 10,116.88/x
  3. Step 3: Cross multiply
    18,500.38x = 25,531.13 × 10,116.88
  4. Step 4: Simplify right side
    18,500.38x = 258,295,378.47
  5. Step 5: Solve for x
    x = 258,295,378.47/18,500.38
  6. Step 6: Final answer
    x = 13,961.63

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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.