Home / 18,631.75-25,703.34-11,073.79

Finding the Fourth Proportional to 18,631.75, 25,703.34 and 11,073.79

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Solution

The fourth proportional to 18,631.75, 25,703.34 and 11,073.79 is: 15,276.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.75 : 25,703.34 = 11,073.79 : x
  2. Step 2: Convert to fraction form
    18,631.75/25,703.34 = 11,073.79/x
  3. Step 3: Cross multiply
    18,631.75x = 25,703.34 × 11,073.79
  4. Step 4: Simplify right side
    18,631.75x = 284,633,237.70
  5. Step 5: Solve for x
    x = 284,633,237.70/18,631.75
  6. Step 6: Final answer
    x = 15,276.78

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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.