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Finding the Fourth Proportional to 9,040.60, 13,539.84 and 8,791.46

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Solution

The fourth proportional to 9,040.60, 13,539.84 and 8,791.46 is: 13,166.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,040.60 : 13,539.84 = 8,791.46 : x
  2. Step 2: Convert to fraction form
    9,040.60/13,539.84 = 8,791.46/x
  3. Step 3: Cross multiply
    9,040.60x = 13,539.84 × 8,791.46
  4. Step 4: Simplify right side
    9,040.60x = 119,034,961.77
  5. Step 5: Solve for x
    x = 119,034,961.77/9,040.60
  6. Step 6: Final answer
    x = 13,166.71

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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.