Home / 18,540.72-25,582.50-10,992.74

Finding the Fourth Proportional to 18,540.72, 25,582.50 and 10,992.74

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Solution

The fourth proportional to 18,540.72, 25,582.50 and 10,992.74 is: 15,167.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.72 : 25,582.50 = 10,992.74 : x
  2. Step 2: Convert to fraction form
    18,540.72/25,582.50 = 10,992.74/x
  3. Step 3: Cross multiply
    18,540.72x = 25,582.50 × 10,992.74
  4. Step 4: Simplify right side
    18,540.72x = 281,221,643.14
  5. Step 5: Solve for x
    x = 281,221,643.14/18,540.72
  6. Step 6: Final answer
    x = 15,167.78

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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.