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Finding the Fourth Proportional to 8,663.48, 12,977.08 and 8,040.84

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Solution

The fourth proportional to 8,663.48, 12,977.08 and 8,040.84 is: 12,044.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.48 : 12,977.08 = 8,040.84 : x
  2. Step 2: Convert to fraction form
    8,663.48/12,977.08 = 8,040.84/x
  3. Step 3: Cross multiply
    8,663.48x = 12,977.08 × 8,040.84
  4. Step 4: Simplify right side
    8,663.48x = 104,346,623.95
  5. Step 5: Solve for x
    x = 104,346,623.95/8,663.48
  6. Step 6: Final answer
    x = 12,044.42

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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.