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Finding the Fourth Proportional to 8,856.75, 12,222.17 and 4,878.24

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Solution

The fourth proportional to 8,856.75, 12,222.17 and 4,878.24 is: 6,731.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.75 : 12,222.17 = 4,878.24 : x
  2. Step 2: Convert to fraction form
    8,856.75/12,222.17 = 4,878.24/x
  3. Step 3: Cross multiply
    8,856.75x = 12,222.17 × 4,878.24
  4. Step 4: Simplify right side
    8,856.75x = 59,622,626.65
  5. Step 5: Solve for x
    x = 59,622,626.65/8,856.75
  6. Step 6: Final answer
    x = 6,731.88

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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.