Home / 13,831.68-20,743.20-5,064.96

Finding the Fourth Proportional to 13,831.68, 20,743.20 and 5,064.96

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Solution

The fourth proportional to 13,831.68, 20,743.20 and 5,064.96 is: 7,595.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.68 : 20,743.20 = 5,064.96 : x
  2. Step 2: Convert to fraction form
    13,831.68/20,743.20 = 5,064.96/x
  3. Step 3: Cross multiply
    13,831.68x = 20,743.20 × 5,064.96
  4. Step 4: Simplify right side
    13,831.68x = 105,063,478.27
  5. Step 5: Solve for x
    x = 105,063,478.27/13,831.68
  6. Step 6: Final answer
    x = 7,595.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.