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Finding the Fourth Proportional to 8,254.40, 12,382.40 and 3,059.52

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Solution

The fourth proportional to 8,254.40, 12,382.40 and 3,059.52 is: 4,589.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.40 : 12,382.40 = 3,059.52 : x
  2. Step 2: Convert to fraction form
    8,254.40/12,382.40 = 3,059.52/x
  3. Step 3: Cross multiply
    8,254.40x = 12,382.40 × 3,059.52
  4. Step 4: Simplify right side
    8,254.40x = 37,884,200.45
  5. Step 5: Solve for x
    x = 37,884,200.45/8,254.40
  6. Step 6: Final answer
    x = 4,589.58

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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.