Home / 13,249.28-18,286.59-8,773.22

Finding the Fourth Proportional to 13,249.28, 18,286.59 and 8,773.22

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Solution

The fourth proportional to 13,249.28, 18,286.59 and 8,773.22 is: 12,108.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.28 : 18,286.59 = 8,773.22 : x
  2. Step 2: Convert to fraction form
    13,249.28/18,286.59 = 8,773.22/x
  3. Step 3: Cross multiply
    13,249.28x = 18,286.59 × 8,773.22
  4. Step 4: Simplify right side
    13,249.28x = 160,432,355.74
  5. Step 5: Solve for x
    x = 160,432,355.74/13,249.28
  6. Step 6: Final answer
    x = 12,108.76

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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.