Home / 13,831.02-20,714.04-6,789.06

Finding the Fourth Proportional to 13,831.02, 20,714.04 and 6,789.06

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Solution

The fourth proportional to 13,831.02, 20,714.04 and 6,789.06 is: 10,167.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.02 : 20,714.04 = 6,789.06 : x
  2. Step 2: Convert to fraction form
    13,831.02/20,714.04 = 6,789.06/x
  3. Step 3: Cross multiply
    13,831.02x = 20,714.04 × 6,789.06
  4. Step 4: Simplify right side
    13,831.02x = 140,628,860.40
  5. Step 5: Solve for x
    x = 140,628,860.40/13,831.02
  6. Step 6: Final answer
    x = 10,167.64

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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.