Home / 8,337.28-12,504.48-3,142.72

Finding the Fourth Proportional to 8,337.28, 12,504.48 and 3,142.72

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Solution

The fourth proportional to 8,337.28, 12,504.48 and 3,142.72 is: 4,713.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,337.28 : 12,504.48 = 3,142.72 : x
  2. Step 2: Convert to fraction form
    8,337.28/12,504.48 = 3,142.72/x
  3. Step 3: Cross multiply
    8,337.28x = 12,504.48 × 3,142.72
  4. Step 4: Simplify right side
    8,337.28x = 39,298,079.39
  5. Step 5: Solve for x
    x = 39,298,079.39/8,337.28
  6. Step 6: Final answer
    x = 4,713.54

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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.