Home / 14,076.80-21,115.16-6,677.21

Finding the Fourth Proportional to 14,076.80, 21,115.16 and 6,677.21

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Solution

The fourth proportional to 14,076.80, 21,115.16 and 6,677.21 is: 10,015.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,076.80 : 21,115.16 = 6,677.21 : x
  2. Step 2: Convert to fraction form
    14,076.80/21,115.16 = 6,677.21/x
  3. Step 3: Cross multiply
    14,076.80x = 21,115.16 × 6,677.21
  4. Step 4: Simplify right side
    14,076.80x = 140,990,218.54
  5. Step 5: Solve for x
    x = 140,990,218.54/14,076.80
  6. Step 6: Final answer
    x = 10,015.79

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1.5x scale

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.