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Finding the Fourth Proportional to 9,591.40, 14,354.70 and 8,813.80

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Solution

The fourth proportional to 9,591.40, 14,354.70 and 8,813.80 is: 13,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,591.40 : 14,354.70 = 8,813.80 : x
  2. Step 2: Convert to fraction form
    9,591.40/14,354.70 = 8,813.80/x
  3. Step 3: Cross multiply
    9,591.40x = 14,354.70 × 8,813.80
  4. Step 4: Simplify right side
    9,591.40x = 126,519,454.86
  5. Step 5: Solve for x
    x = 126,519,454.86/9,591.40
  6. Step 6: Final answer
    x = 13,190.93

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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.