Home / 13,314.75-19,972.13-4,080.75

Finding the Fourth Proportional to 13,314.75, 19,972.13 and 4,080.75

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Solution

The fourth proportional to 13,314.75, 19,972.13 and 4,080.75 is: 6,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.75 : 19,972.13 = 4,080.75 : x
  2. Step 2: Convert to fraction form
    13,314.75/19,972.13 = 4,080.75/x
  3. Step 3: Cross multiply
    13,314.75x = 19,972.13 × 4,080.75
  4. Step 4: Simplify right side
    13,314.75x = 81,501,249.09
  5. Step 5: Solve for x
    x = 81,501,249.09/13,314.75
  6. Step 6: Final answer
    x = 6,121.13

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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.