Home / 18,519.71-27,767.37-10,514.69

Finding the Fourth Proportional to 18,519.71, 27,767.37 and 10,514.69

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Solution

The fourth proportional to 18,519.71, 27,767.37 and 10,514.69 is: 15,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.71 : 27,767.37 = 10,514.69 : x
  2. Step 2: Convert to fraction form
    18,519.71/27,767.37 = 10,514.69/x
  3. Step 3: Cross multiply
    18,519.71x = 27,767.37 × 10,514.69
  4. Step 4: Simplify right side
    18,519.71x = 291,965,129.11
  5. Step 5: Solve for x
    x = 291,965,129.11/18,519.71
  6. Step 6: Final answer
    x = 15,765.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.