Home / 8,298.38-12,447.59-2,142.38

Finding the Fourth Proportional to 8,298.38, 12,447.59 and 2,142.38

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Solution

The fourth proportional to 8,298.38, 12,447.59 and 2,142.38 is: 3,213.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,298.38 : 12,447.59 = 2,142.38 : x
  2. Step 2: Convert to fraction form
    8,298.38/12,447.59 = 2,142.38/x
  3. Step 3: Cross multiply
    8,298.38x = 12,447.59 × 2,142.38
  4. Step 4: Simplify right side
    8,298.38x = 26,667,394.91
  5. Step 5: Solve for x
    x = 26,667,394.91/8,298.38
  6. Step 6: Final answer
    x = 3,213.57

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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.