Home / 18,789.66-25,929.68-10,831.84

Finding the Fourth Proportional to 18,789.66, 25,929.68 and 10,831.84

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Solution

The fourth proportional to 18,789.66, 25,929.68 and 10,831.84 is: 14,947.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.66 : 25,929.68 = 10,831.84 : x
  2. Step 2: Convert to fraction form
    18,789.66/25,929.68 = 10,831.84/x
  3. Step 3: Cross multiply
    18,789.66x = 25,929.68 × 10,831.84
  4. Step 4: Simplify right side
    18,789.66x = 280,866,145.01
  5. Step 5: Solve for x
    x = 280,866,145.01/18,789.66
  6. Step 6: Final answer
    x = 14,947.91

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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.