Home / 8,214.72-12,322.62-2,949.18

Finding the Fourth Proportional to 8,214.72, 12,322.62 and 2,949.18

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Solution

The fourth proportional to 8,214.72, 12,322.62 and 2,949.18 is: 4,423.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.72 : 12,322.62 = 2,949.18 : x
  2. Step 2: Convert to fraction form
    8,214.72/12,322.62 = 2,949.18/x
  3. Step 3: Cross multiply
    8,214.72x = 12,322.62 × 2,949.18
  4. Step 4: Simplify right side
    8,214.72x = 36,341,624.45
  5. Step 5: Solve for x
    x = 36,341,624.45/8,214.72
  6. Step 6: Final answer
    x = 4,423.96

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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.