Home / 8,517.32-11,741.10-6,721.70

Finding the Fourth Proportional to 8,517.32, 11,741.10 and 6,721.70

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Solution

The fourth proportional to 8,517.32, 11,741.10 and 6,721.70 is: 9,265.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,517.32 : 11,741.10 = 6,721.70 : x
  2. Step 2: Convert to fraction form
    8,517.32/11,741.10 = 6,721.70/x
  3. Step 3: Cross multiply
    8,517.32x = 11,741.10 × 6,721.70
  4. Step 4: Simplify right side
    8,517.32x = 78,920,151.87
  5. Step 5: Solve for x
    x = 78,920,151.87/8,517.32
  6. Step 6: Final answer
    x = 9,265.84

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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.