Home / 8,856.20-12,221.16-5,076.66

Finding the Fourth Proportional to 8,856.20, 12,221.16 and 5,076.66

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Solution

The fourth proportional to 8,856.20, 12,221.16 and 5,076.66 is: 7,005.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.20 : 12,221.16 = 5,076.66 : x
  2. Step 2: Convert to fraction form
    8,856.20/12,221.16 = 5,076.66/x
  3. Step 3: Cross multiply
    8,856.20x = 12,221.16 × 5,076.66
  4. Step 4: Simplify right side
    8,856.20x = 62,042,613.02
  5. Step 5: Solve for x
    x = 62,042,613.02/8,856.20
  6. Step 6: Final answer
    x = 7,005.56

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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.