Home / 12,230.20-18,337.56-5,658.40

Finding the Fourth Proportional to 12,230.20, 18,337.56 and 5,658.40

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Solution

The fourth proportional to 12,230.20, 18,337.56 and 5,658.40 is: 8,484.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.20 : 18,337.56 = 5,658.40 : x
  2. Step 2: Convert to fraction form
    12,230.20/18,337.56 = 5,658.40/x
  3. Step 3: Cross multiply
    12,230.20x = 18,337.56 × 5,658.40
  4. Step 4: Simplify right side
    12,230.20x = 103,761,249.50
  5. Step 5: Solve for x
    x = 103,761,249.50/12,230.20
  6. Step 6: Final answer
    x = 8,484.02

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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.