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Finding the Fourth Proportional to 9,354.80, 13,963.71 and 8,247.66

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Solution

The fourth proportional to 9,354.80, 13,963.71 and 8,247.66 is: 12,311.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,354.80 : 13,963.71 = 8,247.66 : x
  2. Step 2: Convert to fraction form
    9,354.80/13,963.71 = 8,247.66/x
  3. Step 3: Cross multiply
    9,354.80x = 13,963.71 × 8,247.66
  4. Step 4: Simplify right side
    9,354.80x = 115,167,932.42
  5. Step 5: Solve for x
    x = 115,167,932.42/9,354.80
  6. Step 6: Final answer
    x = 12,311.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.