Home / 8,743.28-12,077.27-6,479.22

Finding the Fourth Proportional to 8,743.28, 12,077.27 and 6,479.22

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Solution

The fourth proportional to 8,743.28, 12,077.27 and 6,479.22 is: 8,949.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.28 : 12,077.27 = 6,479.22 : x
  2. Step 2: Convert to fraction form
    8,743.28/12,077.27 = 6,479.22/x
  3. Step 3: Cross multiply
    8,743.28x = 12,077.27 × 6,479.22
  4. Step 4: Simplify right side
    8,743.28x = 78,251,256.93
  5. Step 5: Solve for x
    x = 78,251,256.93/8,743.28
  6. Step 6: Final answer
    x = 8,949.88

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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.