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Finding the Fourth Proportional to 8,633.79, 12,972.58 and 8,053.32

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Solution

The fourth proportional to 8,633.79, 12,972.58 and 8,053.32 is: 12,100.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,633.79 : 12,972.58 = 8,053.32 : x
  2. Step 2: Convert to fraction form
    8,633.79/12,972.58 = 8,053.32/x
  3. Step 3: Cross multiply
    8,633.79x = 12,972.58 × 8,053.32
  4. Step 4: Simplify right side
    8,633.79x = 104,472,337.97
  5. Step 5: Solve for x
    x = 104,472,337.97/8,633.79
  6. Step 6: Final answer
    x = 12,100.40

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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.