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Finding the Fourth Proportional to 9,393.96, 14,079.15 and 8,221.17

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Solution

The fourth proportional to 9,393.96, 14,079.15 and 8,221.17 is: 12,321.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,393.96 : 14,079.15 = 8,221.17 : x
  2. Step 2: Convert to fraction form
    9,393.96/14,079.15 = 8,221.17/x
  3. Step 3: Cross multiply
    9,393.96x = 14,079.15 × 8,221.17
  4. Step 4: Simplify right side
    9,393.96x = 115,747,085.61
  5. Step 5: Solve for x
    x = 115,747,085.61/9,393.96
  6. Step 6: Final answer
    x = 12,321.44

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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.