Home / 8,856.15-12,221.28-5,081.53

Finding the Fourth Proportional to 8,856.15, 12,221.28 and 5,081.53

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Solution

The fourth proportional to 8,856.15, 12,221.28 and 5,081.53 is: 7,012.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.15 : 12,221.28 = 5,081.53 : x
  2. Step 2: Convert to fraction form
    8,856.15/12,221.28 = 5,081.53/x
  3. Step 3: Cross multiply
    8,856.15x = 12,221.28 × 5,081.53
  4. Step 4: Simplify right side
    8,856.15x = 62,102,714.44
  5. Step 5: Solve for x
    x = 62,102,714.44/8,856.15
  6. Step 6: Final answer
    x = 7,012.38

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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.