Home / 18,079.12-27,118.86-8,716.96

Finding the Fourth Proportional to 18,079.12, 27,118.86 and 8,716.96

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Solution

The fourth proportional to 18,079.12, 27,118.86 and 8,716.96 is: 13,075.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,079.12 : 27,118.86 = 8,716.96 : x
  2. Step 2: Convert to fraction form
    18,079.12/27,118.86 = 8,716.96/x
  3. Step 3: Cross multiply
    18,079.12x = 27,118.86 × 8,716.96
  4. Step 4: Simplify right side
    18,079.12x = 236,394,017.87
  5. Step 5: Solve for x
    x = 236,394,017.87/18,079.12
  6. Step 6: Final answer
    x = 13,075.53

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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.