Home / 10,249.60-15,373.78-2,855.11

Finding the Fourth Proportional to 10,249.60, 15,373.78 and 2,855.11

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Solution

The fourth proportional to 10,249.60, 15,373.78 and 2,855.11 is: 4,282.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,249.60 : 15,373.78 = 2,855.11 : x
  2. Step 2: Convert to fraction form
    10,249.60/15,373.78 = 2,855.11/x
  3. Step 3: Cross multiply
    10,249.60x = 15,373.78 × 2,855.11
  4. Step 4: Simplify right side
    10,249.60x = 43,893,833.02
  5. Step 5: Solve for x
    x = 43,893,833.02/10,249.60
  6. Step 6: Final answer
    x = 4,282.49

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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.