Home / 12,237.20-18,358.04-5,217.20

Finding the Fourth Proportional to 12,237.20, 18,358.04 and 5,217.20

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Solution

The fourth proportional to 12,237.20, 18,358.04 and 5,217.20 is: 7,826.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.20 : 18,358.04 = 5,217.20 : x
  2. Step 2: Convert to fraction form
    12,237.20/18,358.04 = 5,217.20/x
  3. Step 3: Cross multiply
    12,237.20x = 18,358.04 × 5,217.20
  4. Step 4: Simplify right side
    12,237.20x = 95,777,487.54
  5. Step 5: Solve for x
    x = 95,777,487.54/12,237.20
  6. Step 6: Final answer
    x = 7,826.75

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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.