Home / 15,096.11-20,831.65-8,381.75

Finding the Fourth Proportional to 15,096.11, 20,831.65 and 8,381.75

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Solution

The fourth proportional to 15,096.11, 20,831.65 and 8,381.75 is: 11,566.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,096.11 : 20,831.65 = 8,381.75 : x
  2. Step 2: Convert to fraction form
    15,096.11/20,831.65 = 8,381.75/x
  3. Step 3: Cross multiply
    15,096.11x = 20,831.65 × 8,381.75
  4. Step 4: Simplify right side
    15,096.11x = 174,605,557.27
  5. Step 5: Solve for x
    x = 174,605,557.27/15,096.11
  6. Step 6: Final answer
    x = 11,566.27

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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.