Home / 18,488.22-25,516.40-10,531.20

Finding the Fourth Proportional to 18,488.22, 25,516.40 and 10,531.20

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Solution

The fourth proportional to 18,488.22, 25,516.40 and 10,531.20 is: 14,534.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.22 : 25,516.40 = 10,531.20 : x
  2. Step 2: Convert to fraction form
    18,488.22/25,516.40 = 10,531.20/x
  3. Step 3: Cross multiply
    18,488.22x = 25,516.40 × 10,531.20
  4. Step 4: Simplify right side
    18,488.22x = 268,718,311.68
  5. Step 5: Solve for x
    x = 268,718,311.68/18,488.22
  6. Step 6: Final answer
    x = 14,534.57

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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.