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Finding the Fourth Proportional to 8,643.52, 12,973.36 and 3,966.04

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Solution

The fourth proportional to 8,643.52, 12,973.36 and 3,966.04 is: 5,952.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,643.52 : 12,973.36 = 3,966.04 : x
  2. Step 2: Convert to fraction form
    8,643.52/12,973.36 = 3,966.04/x
  3. Step 3: Cross multiply
    8,643.52x = 12,973.36 × 3,966.04
  4. Step 4: Simplify right side
    8,643.52x = 51,452,864.69
  5. Step 5: Solve for x
    x = 51,452,864.69/8,643.52
  6. Step 6: Final answer
    x = 5,952.77

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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.