Home / 8,672.20-11,957.66-6,406.82

Finding the Fourth Proportional to 8,672.20, 11,957.66 and 6,406.82

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Solution

The fourth proportional to 8,672.20, 11,957.66 and 6,406.82 is: 8,834.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.20 : 11,957.66 = 6,406.82 : x
  2. Step 2: Convert to fraction form
    8,672.20/11,957.66 = 6,406.82/x
  3. Step 3: Cross multiply
    8,672.20x = 11,957.66 × 6,406.82
  4. Step 4: Simplify right side
    8,672.20x = 76,610,552.29
  5. Step 5: Solve for x
    x = 76,610,552.29/8,672.20
  6. Step 6: Final answer
    x = 8,834.04

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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.