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Finding the Fourth Proportional to 9,188.70, 13,793.85 and 9,123.90

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Solution

The fourth proportional to 9,188.70, 13,793.85 and 9,123.90 is: 13,696.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,188.70 : 13,793.85 = 9,123.90 : x
  2. Step 2: Convert to fraction form
    9,188.70/13,793.85 = 9,123.90/x
  3. Step 3: Cross multiply
    9,188.70x = 13,793.85 × 9,123.90
  4. Step 4: Simplify right side
    9,188.70x = 125,853,708.02
  5. Step 5: Solve for x
    x = 125,853,708.02/9,188.70
  6. Step 6: Final answer
    x = 13,696.57

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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.