Home / 8,113.61-12,179.52-6,286.75

Finding the Fourth Proportional to 8,113.61, 12,179.52 and 6,286.75

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Solution

The fourth proportional to 8,113.61, 12,179.52 and 6,286.75 is: 9,437.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,113.61 : 12,179.52 = 6,286.75 : x
  2. Step 2: Convert to fraction form
    8,113.61/12,179.52 = 6,286.75/x
  3. Step 3: Cross multiply
    8,113.61x = 12,179.52 × 6,286.75
  4. Step 4: Simplify right side
    8,113.61x = 76,569,566.91
  5. Step 5: Solve for x
    x = 76,569,566.91/8,113.61
  6. Step 6: Final answer
    x = 9,437.17

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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.