Home / 18,702.60-28,052.28-6,218.61

Finding the Fourth Proportional to 18,702.60, 28,052.28 and 6,218.61

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Solution

The fourth proportional to 18,702.60, 28,052.28 and 6,218.61 is: 9,327.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.60 : 28,052.28 = 6,218.61 : x
  2. Step 2: Convert to fraction form
    18,702.60/28,052.28 = 6,218.61/x
  3. Step 3: Cross multiply
    18,702.60x = 28,052.28 × 6,218.61
  4. Step 4: Simplify right side
    18,702.60x = 174,446,188.93
  5. Step 5: Solve for x
    x = 174,446,188.93/18,702.60
  6. Step 6: Final answer
    x = 9,327.38

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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.