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Finding the Fourth Proportional to 9,434.54, 13,080.17 and 8,909.66

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Solution

The fourth proportional to 9,434.54, 13,080.17 and 8,909.66 is: 12,352.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,434.54 : 13,080.17 = 8,909.66 : x
  2. Step 2: Convert to fraction form
    9,434.54/13,080.17 = 8,909.66/x
  3. Step 3: Cross multiply
    9,434.54x = 13,080.17 × 8,909.66
  4. Step 4: Simplify right side
    9,434.54x = 116,539,872.30
  5. Step 5: Solve for x
    x = 116,539,872.30/9,434.54
  6. Step 6: Final answer
    x = 12,352.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.