Home / 8,249.20-12,373.80-3,316.30

Finding the Fourth Proportional to 8,249.20, 12,373.80 and 3,316.30

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Solution

The fourth proportional to 8,249.20, 12,373.80 and 3,316.30 is: 4,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,249.20 : 12,373.80 = 3,316.30 : x
  2. Step 2: Convert to fraction form
    8,249.20/12,373.80 = 3,316.30/x
  3. Step 3: Cross multiply
    8,249.20x = 12,373.80 × 3,316.30
  4. Step 4: Simplify right side
    8,249.20x = 41,035,232.94
  5. Step 5: Solve for x
    x = 41,035,232.94/8,249.20
  6. Step 6: Final answer
    x = 4,974.45

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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.