Home / 18,292.03-27,432.60-7,761.90

Finding the Fourth Proportional to 18,292.03, 27,432.60 and 7,761.90

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Solution

The fourth proportional to 18,292.03, 27,432.60 and 7,761.90 is: 11,640.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,292.03 : 27,432.60 = 7,761.90 : x
  2. Step 2: Convert to fraction form
    18,292.03/27,432.60 = 7,761.90/x
  3. Step 3: Cross multiply
    18,292.03x = 27,432.60 × 7,761.90
  4. Step 4: Simplify right side
    18,292.03x = 212,929,097.94
  5. Step 5: Solve for x
    x = 212,929,097.94/18,292.03
  6. Step 6: Final answer
    x = 11,640.54

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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.