Home / 8,217.45-11,339.18-5,031.55

Finding the Fourth Proportional to 8,217.45, 11,339.18 and 5,031.55

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Solution

The fourth proportional to 8,217.45, 11,339.18 and 5,031.55 is: 6,942.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.45 : 11,339.18 = 5,031.55 : x
  2. Step 2: Convert to fraction form
    8,217.45/11,339.18 = 5,031.55/x
  3. Step 3: Cross multiply
    8,217.45x = 11,339.18 × 5,031.55
  4. Step 4: Simplify right side
    8,217.45x = 57,053,659.01
  5. Step 5: Solve for x
    x = 57,053,659.01/8,217.45
  6. Step 6: Final answer
    x = 6,942.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.