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Finding the Fourth Proportional to 8,459.68, 12,687.04 and 3,264.36

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Solution

The fourth proportional to 8,459.68, 12,687.04 and 3,264.36 is: 4,895.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.68 : 12,687.04 = 3,264.36 : x
  2. Step 2: Convert to fraction form
    8,459.68/12,687.04 = 3,264.36/x
  3. Step 3: Cross multiply
    8,459.68x = 12,687.04 × 3,264.36
  4. Step 4: Simplify right side
    8,459.68x = 41,415,065.89
  5. Step 5: Solve for x
    x = 41,415,065.89/8,459.68
  6. Step 6: Final answer
    x = 4,895.58

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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.