Home / 14,942.38-20,613.56-9,638.90

Finding the Fourth Proportional to 14,942.38, 20,613.56 and 9,638.90

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Solution

The fourth proportional to 14,942.38, 20,613.56 and 9,638.90 is: 13,297.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,942.38 : 20,613.56 = 9,638.90 : x
  2. Step 2: Convert to fraction form
    14,942.38/20,613.56 = 9,638.90/x
  3. Step 3: Cross multiply
    14,942.38x = 20,613.56 × 9,638.90
  4. Step 4: Simplify right side
    14,942.38x = 198,692,046.82
  5. Step 5: Solve for x
    x = 198,692,046.82/14,942.38
  6. Step 6: Final answer
    x = 13,297.22

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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.