Home / 8,098.38-12,169.85-4,812.21

Finding the Fourth Proportional to 8,098.38, 12,169.85 and 4,812.21

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Solution

The fourth proportional to 8,098.38, 12,169.85 and 4,812.21 is: 7,231.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,098.38 : 12,169.85 = 4,812.21 : x
  2. Step 2: Convert to fraction form
    8,098.38/12,169.85 = 4,812.21/x
  3. Step 3: Cross multiply
    8,098.38x = 12,169.85 × 4,812.21
  4. Step 4: Simplify right side
    8,098.38x = 58,563,849.81
  5. Step 5: Solve for x
    x = 58,563,849.81/8,098.38
  6. Step 6: Final answer
    x = 7,231.55

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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.