Home / 13,831.38-18,934.60-13,732.56

Finding the Fourth Proportional to 13,831.38, 18,934.60 and 13,732.56

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Solution

The fourth proportional to 13,831.38, 18,934.60 and 13,732.56 is: 18,799.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.38 : 18,934.60 = 13,732.56 : x
  2. Step 2: Convert to fraction form
    13,831.38/18,934.60 = 13,732.56/x
  3. Step 3: Cross multiply
    13,831.38x = 18,934.60 × 13,732.56
  4. Step 4: Simplify right side
    13,831.38x = 260,020,530.58
  5. Step 5: Solve for x
    x = 260,020,530.58/13,831.38
  6. Step 6: Final answer
    x = 18,799.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.