Home / 8,856.73-12,221.82-5,079.70

Finding the Fourth Proportional to 8,856.73, 12,221.82 and 5,079.70

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Solution

The fourth proportional to 8,856.73, 12,221.82 and 5,079.70 is: 7,009.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.73 : 12,221.82 = 5,079.70 : x
  2. Step 2: Convert to fraction form
    8,856.73/12,221.82 = 5,079.70/x
  3. Step 3: Cross multiply
    8,856.73x = 12,221.82 × 5,079.70
  4. Step 4: Simplify right side
    8,856.73x = 62,083,179.05
  5. Step 5: Solve for x
    x = 62,083,179.05/8,856.73
  6. Step 6: Final answer
    x = 7,009.72

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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.