Home / 8,318.97-12,507.31-6,687.02

Finding the Fourth Proportional to 8,318.97, 12,507.31 and 6,687.02

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Solution

The fourth proportional to 8,318.97, 12,507.31 and 6,687.02 is: 10,053.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.97 : 12,507.31 = 6,687.02 : x
  2. Step 2: Convert to fraction form
    8,318.97/12,507.31 = 6,687.02/x
  3. Step 3: Cross multiply
    8,318.97x = 12,507.31 × 6,687.02
  4. Step 4: Simplify right side
    8,318.97x = 83,636,671.74
  5. Step 5: Solve for x
    x = 83,636,671.74/8,318.97
  6. Step 6: Final answer
    x = 10,053.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.