Home / 12,179.40-18,262.62-5,761.26

Finding the Fourth Proportional to 12,179.40, 18,262.62 and 5,761.26

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Solution

The fourth proportional to 12,179.40, 18,262.62 and 5,761.26 is: 8,638.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179.40 : 18,262.62 = 5,761.26 : x
  2. Step 2: Convert to fraction form
    12,179.40/18,262.62 = 5,761.26/x
  3. Step 3: Cross multiply
    12,179.40x = 18,262.62 × 5,761.26
  4. Step 4: Simplify right side
    12,179.40x = 105,215,702.10
  5. Step 5: Solve for x
    x = 105,215,702.10/12,179.40
  6. Step 6: Final answer
    x = 8,638.82

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1.5x scale

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.