Home / 8,856.38-12,221.66-4,877.86

Finding the Fourth Proportional to 8,856.38, 12,221.66 and 4,877.86

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Solution

The fourth proportional to 8,856.38, 12,221.66 and 4,877.86 is: 6,731.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.38 : 12,221.66 = 4,877.86 : x
  2. Step 2: Convert to fraction form
    8,856.38/12,221.66 = 4,877.86/x
  3. Step 3: Cross multiply
    8,856.38x = 12,221.66 × 4,877.86
  4. Step 4: Simplify right side
    8,856.38x = 59,615,537.34
  5. Step 5: Solve for x
    x = 59,615,537.34/8,856.38
  6. Step 6: Final answer
    x = 6,731.37

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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.