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Finding the Fourth Proportional to 9,069, 12,517.38 and 5,535.18

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Solution

The fourth proportional to 9,069, 12,517.38 and 5,535.18 is: 7,639.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,069 : 12,517.38 = 5,535.18 : x
  2. Step 2: Convert to fraction form
    9,069/12,517.38 = 5,535.18/x
  3. Step 3: Cross multiply
    9,069x = 12,517.38 × 5,535.18
  4. Step 4: Simplify right side
    9,069x = 69,285,951.43
  5. Step 5: Solve for x
    x = 69,285,951.43/9,069
  6. Step 6: Final answer
    x = 7,639.87

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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.