Home / 8,702.36-12,011.31-5,167.61

Finding the Fourth Proportional to 8,702.36, 12,011.31 and 5,167.61

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Solution

The fourth proportional to 8,702.36, 12,011.31 and 5,167.61 is: 7,132.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.36 : 12,011.31 = 5,167.61 : x
  2. Step 2: Convert to fraction form
    8,702.36/12,011.31 = 5,167.61/x
  3. Step 3: Cross multiply
    8,702.36x = 12,011.31 × 5,167.61
  4. Step 4: Simplify right side
    8,702.36x = 62,069,765.67
  5. Step 5: Solve for x
    x = 62,069,765.67/8,702.36
  6. Step 6: Final answer
    x = 7,132.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.