Home / 14,713.12-20,304.50-7,999.20

Finding the Fourth Proportional to 14,713.12, 20,304.50 and 7,999.20

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Solution

The fourth proportional to 14,713.12, 20,304.50 and 7,999.20 is: 11,039.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,713.12 : 20,304.50 = 7,999.20 : x
  2. Step 2: Convert to fraction form
    14,713.12/20,304.50 = 7,999.20/x
  3. Step 3: Cross multiply
    14,713.12x = 20,304.50 × 7,999.20
  4. Step 4: Simplify right side
    14,713.12x = 162,419,716.40
  5. Step 5: Solve for x
    x = 162,419,716.40/14,713.12
  6. Step 6: Final answer
    x = 11,039.11

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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.