Home / 18,519.82-25,565.56-11,814.24

Finding the Fourth Proportional to 18,519.82, 25,565.56 and 11,814.24

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Solution

The fourth proportional to 18,519.82, 25,565.56 and 11,814.24 is: 16,308.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.82 : 25,565.56 = 11,814.24 : x
  2. Step 2: Convert to fraction form
    18,519.82/25,565.56 = 11,814.24/x
  3. Step 3: Cross multiply
    18,519.82x = 25,565.56 × 11,814.24
  4. Step 4: Simplify right side
    18,519.82x = 302,037,661.57
  5. Step 5: Solve for x
    x = 302,037,661.57/18,519.82
  6. Step 6: Final answer
    x = 16,308.89

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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.