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Finding the Fourth Proportional to 8,660.22, 12,992.50 and 4,966.62

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Solution

The fourth proportional to 8,660.22, 12,992.50 and 4,966.62 is: 7,451.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.22 : 12,992.50 = 4,966.62 : x
  2. Step 2: Convert to fraction form
    8,660.22/12,992.50 = 4,966.62/x
  3. Step 3: Cross multiply
    8,660.22x = 12,992.50 × 4,966.62
  4. Step 4: Simplify right side
    8,660.22x = 64,528,810.35
  5. Step 5: Solve for x
    x = 64,528,810.35/8,660.22
  6. Step 6: Final answer
    x = 7,451.17

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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.