Home / 18,278.96-25,226.10-11,113.92

Finding the Fourth Proportional to 18,278.96, 25,226.10 and 11,113.92

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Solution

The fourth proportional to 18,278.96, 25,226.10 and 11,113.92 is: 15,337.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.96 : 25,226.10 = 11,113.92 : x
  2. Step 2: Convert to fraction form
    18,278.96/25,226.10 = 11,113.92/x
  3. Step 3: Cross multiply
    18,278.96x = 25,226.10 × 11,113.92
  4. Step 4: Simplify right side
    18,278.96x = 280,360,857.31
  5. Step 5: Solve for x
    x = 280,360,857.31/18,278.96
  6. Step 6: Final answer
    x = 15,337.90

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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.