Home / 8,318.89-12,481.98-4,418.74

Finding the Fourth Proportional to 8,318.89, 12,481.98 and 4,418.74

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Solution

The fourth proportional to 8,318.89, 12,481.98 and 4,418.74 is: 6,630.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.89 : 12,481.98 = 4,418.74 : x
  2. Step 2: Convert to fraction form
    8,318.89/12,481.98 = 4,418.74/x
  3. Step 3: Cross multiply
    8,318.89x = 12,481.98 × 4,418.74
  4. Step 4: Simplify right side
    8,318.89x = 55,154,624.31
  5. Step 5: Solve for x
    x = 55,154,624.31/8,318.89
  6. Step 6: Final answer
    x = 6,630.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.