Home / 12,249.20-18,337.35-7,316.30

Finding the Fourth Proportional to 12,249.20, 18,337.35 and 7,316.30

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Solution

The fourth proportional to 12,249.20, 18,337.35 and 7,316.30 is: 10,952.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.20 : 18,337.35 = 7,316.30 : x
  2. Step 2: Convert to fraction form
    12,249.20/18,337.35 = 7,316.30/x
  3. Step 3: Cross multiply
    12,249.20x = 18,337.35 × 7,316.30
  4. Step 4: Simplify right side
    12,249.20x = 134,161,553.81
  5. Step 5: Solve for x
    x = 134,161,553.81/12,249.20
  6. Step 6: Final answer
    x = 10,952.68

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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.