Home / 8,154.84-11,249.37-5,165.55

Finding the Fourth Proportional to 8,154.84, 11,249.37 and 5,165.55

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Solution

The fourth proportional to 8,154.84, 11,249.37 and 5,165.55 is: 7,125.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.84 : 11,249.37 = 5,165.55 : x
  2. Step 2: Convert to fraction form
    8,154.84/11,249.37 = 5,165.55/x
  3. Step 3: Cross multiply
    8,154.84x = 11,249.37 × 5,165.55
  4. Step 4: Simplify right side
    8,154.84x = 58,109,183.20
  5. Step 5: Solve for x
    x = 58,109,183.20/8,154.84
  6. Step 6: Final answer
    x = 7,125.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.