Home / 8,839.27-12,200.16-6,921.28

Finding the Fourth Proportional to 8,839.27, 12,200.16 and 6,921.28

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Solution

The fourth proportional to 8,839.27, 12,200.16 and 6,921.28 is: 9,552.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.27 : 12,200.16 = 6,921.28 : x
  2. Step 2: Convert to fraction form
    8,839.27/12,200.16 = 6,921.28/x
  3. Step 3: Cross multiply
    8,839.27x = 12,200.16 × 6,921.28
  4. Step 4: Simplify right side
    8,839.27x = 84,440,723.40
  5. Step 5: Solve for x
    x = 84,440,723.40/8,839.27
  6. Step 6: Final answer
    x = 9,552.91

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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.