Home / 14,750.90-20,382.18-11,791.16

Finding the Fourth Proportional to 14,750.90, 20,382.18 and 11,791.16

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Solution

The fourth proportional to 14,750.90, 20,382.18 and 11,791.16 is: 16,292.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,750.90 : 20,382.18 = 11,791.16 : x
  2. Step 2: Convert to fraction form
    14,750.90/20,382.18 = 11,791.16/x
  3. Step 3: Cross multiply
    14,750.90x = 20,382.18 × 11,791.16
  4. Step 4: Simplify right side
    14,750.90x = 240,329,545.53
  5. Step 5: Solve for x
    x = 240,329,545.53/14,750.90
  6. Step 6: Final answer
    x = 16,292.53

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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.