Home / 18,118.43-25,015.71-11,322.83

Finding the Fourth Proportional to 18,118.43, 25,015.71 and 11,322.83

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Solution

The fourth proportional to 18,118.43, 25,015.71 and 11,322.83 is: 15,633.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.43 : 25,015.71 = 11,322.83 : x
  2. Step 2: Convert to fraction form
    18,118.43/25,015.71 = 11,322.83/x
  3. Step 3: Cross multiply
    18,118.43x = 25,015.71 × 11,322.83
  4. Step 4: Simplify right side
    18,118.43x = 283,248,449.97
  5. Step 5: Solve for x
    x = 283,248,449.97/18,118.43
  6. Step 6: Final answer
    x = 15,633.17

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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.