Home / 8,856.28-12,221.67-4,877.39

Finding the Fourth Proportional to 8,856.28, 12,221.67 and 4,877.39

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Solution

The fourth proportional to 8,856.28, 12,221.67 and 4,877.39 is: 6,730.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.28 : 12,221.67 = 4,877.39 : x
  2. Step 2: Convert to fraction form
    8,856.28/12,221.67 = 4,877.39/x
  3. Step 3: Cross multiply
    8,856.28x = 12,221.67 × 4,877.39
  4. Step 4: Simplify right side
    8,856.28x = 59,609,803.70
  5. Step 5: Solve for x
    x = 59,609,803.70/8,856.28
  6. Step 6: Final answer
    x = 6,730.79

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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.