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Finding the Fourth Proportional to 8,927.14, 13,385.70 and 3,660.70

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Solution

The fourth proportional to 8,927.14, 13,385.70 and 3,660.70 is: 5,489.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,927.14 : 13,385.70 = 3,660.70 : x
  2. Step 2: Convert to fraction form
    8,927.14/13,385.70 = 3,660.70/x
  3. Step 3: Cross multiply
    8,927.14x = 13,385.70 × 3,660.70
  4. Step 4: Simplify right side
    8,927.14x = 49,001,031.99
  5. Step 5: Solve for x
    x = 49,001,031.99/8,927.14
  6. Step 6: Final answer
    x = 5,489.00

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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.