Home / 8,702.12-13,052.77-2,127.95

Finding the Fourth Proportional to 8,702.12, 13,052.77 and 2,127.95

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Solution

The fourth proportional to 8,702.12, 13,052.77 and 2,127.95 is: 3,191.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.12 : 13,052.77 = 2,127.95 : x
  2. Step 2: Convert to fraction form
    8,702.12/13,052.77 = 2,127.95/x
  3. Step 3: Cross multiply
    8,702.12x = 13,052.77 × 2,127.95
  4. Step 4: Simplify right side
    8,702.12x = 27,775,641.92
  5. Step 5: Solve for x
    x = 27,775,641.92/8,702.12
  6. Step 6: Final answer
    x = 3,191.82

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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.