Home / 8,217.84-12,318.66-3,538.92

Finding the Fourth Proportional to 8,217.84, 12,318.66 and 3,538.92

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Solution

The fourth proportional to 8,217.84, 12,318.66 and 3,538.92 is: 5,304.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.84 : 12,318.66 = 3,538.92 : x
  2. Step 2: Convert to fraction form
    8,217.84/12,318.66 = 3,538.92/x
  3. Step 3: Cross multiply
    8,217.84x = 12,318.66 × 3,538.92
  4. Step 4: Simplify right side
    8,217.84x = 43,594,752.25
  5. Step 5: Solve for x
    x = 43,594,752.25/8,217.84
  6. Step 6: Final answer
    x = 5,304.89

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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.