Home / 19,010.80-28,516.20-9,169.30

Finding the Fourth Proportional to 19,010.80, 28,516.20 and 9,169.30

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Solution

The fourth proportional to 19,010.80, 28,516.20 and 9,169.30 is: 13,753.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,010.80 : 28,516.20 = 9,169.30 : x
  2. Step 2: Convert to fraction form
    19,010.80/28,516.20 = 9,169.30/x
  3. Step 3: Cross multiply
    19,010.80x = 28,516.20 × 9,169.30
  4. Step 4: Simplify right side
    19,010.80x = 261,473,592.66
  5. Step 5: Solve for x
    x = 261,473,592.66/19,010.80
  6. Step 6: Final answer
    x = 13,753.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.