Home / 18,789.20-25,929.13-10,831.97

Finding the Fourth Proportional to 18,789.20, 25,929.13 and 10,831.97

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Solution

The fourth proportional to 18,789.20, 25,929.13 and 10,831.97 is: 14,948.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.20 : 25,929.13 = 10,831.97 : x
  2. Step 2: Convert to fraction form
    18,789.20/25,929.13 = 10,831.97/x
  3. Step 3: Cross multiply
    18,789.20x = 25,929.13 × 10,831.97
  4. Step 4: Simplify right side
    18,789.20x = 280,863,558.29
  5. Step 5: Solve for x
    x = 280,863,558.29/18,789.20
  6. Step 6: Final answer
    x = 14,948.14

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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.