Home / 10,169.11-15,180.02-8,791.30

Finding the Fourth Proportional to 10,169.11, 15,180.02 and 8,791.30

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Solution

The fourth proportional to 10,169.11, 15,180.02 and 8,791.30 is: 13,123.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,169.11 : 15,180.02 = 8,791.30 : x
  2. Step 2: Convert to fraction form
    10,169.11/15,180.02 = 8,791.30/x
  3. Step 3: Cross multiply
    10,169.11x = 15,180.02 × 8,791.30
  4. Step 4: Simplify right side
    10,169.11x = 133,452,109.83
  5. Step 5: Solve for x
    x = 133,452,109.83/10,169.11
  6. Step 6: Final answer
    x = 13,123.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.