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Finding the Fourth Proportional to 8,167.52, 12,247.76 and 2,619.02

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Solution

The fourth proportional to 8,167.52, 12,247.76 and 2,619.02 is: 3,927.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.52 : 12,247.76 = 2,619.02 : x
  2. Step 2: Convert to fraction form
    8,167.52/12,247.76 = 2,619.02/x
  3. Step 3: Cross multiply
    8,167.52x = 12,247.76 × 2,619.02
  4. Step 4: Simplify right side
    8,167.52x = 32,077,128.40
  5. Step 5: Solve for x
    x = 32,077,128.40/8,167.52
  6. Step 6: Final answer
    x = 3,927.40

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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.