Home / 8,856.14-12,221.82-4,877.55

Finding the Fourth Proportional to 8,856.14, 12,221.82 and 4,877.55

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Solution

The fourth proportional to 8,856.14, 12,221.82 and 4,877.55 is: 6,731.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.14 : 12,221.82 = 4,877.55 : x
  2. Step 2: Convert to fraction form
    8,856.14/12,221.82 = 4,877.55/x
  3. Step 3: Cross multiply
    8,856.14x = 12,221.82 × 4,877.55
  4. Step 4: Simplify right side
    8,856.14x = 59,612,538.14
  5. Step 5: Solve for x
    x = 59,612,538.14/8,856.14
  6. Step 6: Final answer
    x = 6,731.21

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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.