Home / 8,856.29-12,221.19-5,079.61

Finding the Fourth Proportional to 8,856.29, 12,221.19 and 5,079.61

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Solution

The fourth proportional to 8,856.29, 12,221.19 and 5,079.61 is: 7,009.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.29 : 12,221.19 = 5,079.61 : x
  2. Step 2: Convert to fraction form
    8,856.29/12,221.19 = 5,079.61/x
  3. Step 3: Cross multiply
    8,856.29x = 12,221.19 × 5,079.61
  4. Step 4: Simplify right side
    8,856.29x = 62,078,878.94
  5. Step 5: Solve for x
    x = 62,078,878.94/8,856.29
  6. Step 6: Final answer
    x = 7,009.58

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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.