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Finding the Fourth Proportional to 13,946.80, 20,920.20 and 9,273.10

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Solution

The fourth proportional to 13,946.80, 20,920.20 and 9,273.10 is: 13,909.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.80 : 20,920.20 = 9,273.10 : x
  2. Step 2: Convert to fraction form
    13,946.80/20,920.20 = 9,273.10/x
  3. Step 3: Cross multiply
    13,946.80x = 20,920.20 × 9,273.10
  4. Step 4: Simplify right side
    13,946.80x = 193,995,106.62
  5. Step 5: Solve for x
    x = 193,995,106.62/13,946.80
  6. Step 6: Final answer
    x = 13,909.65

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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.