Home / 8,178.29-12,269.25-2,984.16

Finding the Fourth Proportional to 8,178.29, 12,269.25 and 2,984.16

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Solution

The fourth proportional to 8,178.29, 12,269.25 and 2,984.16 is: 4,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.29 : 12,269.25 = 2,984.16 : x
  2. Step 2: Convert to fraction form
    8,178.29/12,269.25 = 2,984.16/x
  3. Step 3: Cross multiply
    8,178.29x = 12,269.25 × 2,984.16
  4. Step 4: Simplify right side
    8,178.29x = 36,613,405.08
  5. Step 5: Solve for x
    x = 36,613,405.08/8,178.29
  6. Step 6: Final answer
    x = 4,476.90

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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.