Home / 18,778.32-25,909.74-11,227.04

Finding the Fourth Proportional to 18,778.32, 25,909.74 and 11,227.04

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Solution

The fourth proportional to 18,778.32, 25,909.74 and 11,227.04 is: 15,490.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778.32 : 25,909.74 = 11,227.04 : x
  2. Step 2: Convert to fraction form
    18,778.32/25,909.74 = 11,227.04/x
  3. Step 3: Cross multiply
    18,778.32x = 25,909.74 × 11,227.04
  4. Step 4: Simplify right side
    18,778.32x = 290,889,687.37
  5. Step 5: Solve for x
    x = 290,889,687.37/18,778.32
  6. Step 6: Final answer
    x = 15,490.72

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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.