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Finding the Fourth Proportional to 8,591.62, 12,887.43 and 4,698.76

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Solution

The fourth proportional to 8,591.62, 12,887.43 and 4,698.76 is: 7,048.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.62 : 12,887.43 = 4,698.76 : x
  2. Step 2: Convert to fraction form
    8,591.62/12,887.43 = 4,698.76/x
  3. Step 3: Cross multiply
    8,591.62x = 12,887.43 × 4,698.76
  4. Step 4: Simplify right side
    8,591.62x = 60,554,940.59
  5. Step 5: Solve for x
    x = 60,554,940.59/8,591.62
  6. Step 6: Final answer
    x = 7,048.14

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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.