Home / 16,938.56-23,375.20-9,869.76

Finding the Fourth Proportional to 16,938.56, 23,375.20 and 9,869.76

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Solution

The fourth proportional to 16,938.56, 23,375.20 and 9,869.76 is: 13,620.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,938.56 : 23,375.20 = 9,869.76 : x
  2. Step 2: Convert to fraction form
    16,938.56/23,375.20 = 9,869.76/x
  3. Step 3: Cross multiply
    16,938.56x = 23,375.20 × 9,869.76
  4. Step 4: Simplify right side
    16,938.56x = 230,707,613.95
  5. Step 5: Solve for x
    x = 230,707,613.95/16,938.56
  6. Step 6: Final answer
    x = 13,620.26

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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.