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Finding the Fourth Proportional to 8,007.80, 11,981.57 and 7,585.88

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Solution

The fourth proportional to 8,007.80, 11,981.57 and 7,585.88 is: 11,350.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,007.80 : 11,981.57 = 7,585.88 : x
  2. Step 2: Convert to fraction form
    8,007.80/11,981.57 = 7,585.88/x
  3. Step 3: Cross multiply
    8,007.80x = 11,981.57 × 7,585.88
  4. Step 4: Simplify right side
    8,007.80x = 90,890,654.39
  5. Step 5: Solve for x
    x = 90,890,654.39/8,007.80
  6. Step 6: Final answer
    x = 11,350.27

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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.