Home / 17,961.76-24,761.50-12,640.06

Finding the Fourth Proportional to 17,961.76, 24,761.50 and 12,640.06

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Solution

The fourth proportional to 17,961.76, 24,761.50 and 12,640.06 is: 17,425.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,961.76 : 24,761.50 = 12,640.06 : x
  2. Step 2: Convert to fraction form
    17,961.76/24,761.50 = 12,640.06/x
  3. Step 3: Cross multiply
    17,961.76x = 24,761.50 × 12,640.06
  4. Step 4: Simplify right side
    17,961.76x = 312,986,845.69
  5. Step 5: Solve for x
    x = 312,986,845.69/17,961.76
  6. Step 6: Final answer
    x = 17,425.18

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1.5x scale

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.