Home / 18,519.32-25,564.86-11,813.73

Finding the Fourth Proportional to 18,519.32, 25,564.86 and 11,813.73

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Solution

The fourth proportional to 18,519.32, 25,564.86 and 11,813.73 is: 16,308.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.32 : 25,564.86 = 11,813.73 : x
  2. Step 2: Convert to fraction form
    18,519.32/25,564.86 = 11,813.73/x
  3. Step 3: Cross multiply
    18,519.32x = 25,564.86 × 11,813.73
  4. Step 4: Simplify right side
    18,519.32x = 302,016,353.53
  5. Step 5: Solve for x
    x = 302,016,353.53/18,519.32
  6. Step 6: Final answer
    x = 16,308.18

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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.