Home / 14,714.16-20,305.66-7,999.80

Finding the Fourth Proportional to 14,714.16, 20,305.66 and 7,999.80

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Solution

The fourth proportional to 14,714.16, 20,305.66 and 7,999.80 is: 11,039.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,714.16 : 20,305.66 = 7,999.80 : x
  2. Step 2: Convert to fraction form
    14,714.16/20,305.66 = 7,999.80/x
  3. Step 3: Cross multiply
    14,714.16x = 20,305.66 × 7,999.80
  4. Step 4: Simplify right side
    14,714.16x = 162,441,218.87
  5. Step 5: Solve for x
    x = 162,441,218.87/14,714.16
  6. Step 6: Final answer
    x = 11,039.79

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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.