Home / 13,831.02-20,744.49-6,809.17

Finding the Fourth Proportional to 13,831.02, 20,744.49 and 6,809.17

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Solution

The fourth proportional to 13,831.02, 20,744.49 and 6,809.17 is: 10,212.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.02 : 20,744.49 = 6,809.17 : x
  2. Step 2: Convert to fraction form
    13,831.02/20,744.49 = 6,809.17/x
  3. Step 3: Cross multiply
    13,831.02x = 20,744.49 × 6,809.17
  4. Step 4: Simplify right side
    13,831.02x = 141,252,758.97
  5. Step 5: Solve for x
    x = 141,252,758.97/13,831.02
  6. Step 6: Final answer
    x = 10,212.75

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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.