Home / 8,856.85-12,220.66-6,731.81

Finding the Fourth Proportional to 8,856.85, 12,220.66 and 6,731.81

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Solution

The fourth proportional to 8,856.85, 12,220.66 and 6,731.81 is: 9,288.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.85 : 12,220.66 = 6,731.81 : x
  2. Step 2: Convert to fraction form
    8,856.85/12,220.66 = 6,731.81/x
  3. Step 3: Cross multiply
    8,856.85x = 12,220.66 × 6,731.81
  4. Step 4: Simplify right side
    8,856.85x = 82,267,127.54
  5. Step 5: Solve for x
    x = 82,267,127.54/8,856.85
  6. Step 6: Final answer
    x = 9,288.54

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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.