Home / 8,758.27-12,080.41-5,218.75

Finding the Fourth Proportional to 8,758.27, 12,080.41 and 5,218.75

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Solution

The fourth proportional to 8,758.27, 12,080.41 and 5,218.75 is: 7,198.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.27 : 12,080.41 = 5,218.75 : x
  2. Step 2: Convert to fraction form
    8,758.27/12,080.41 = 5,218.75/x
  3. Step 3: Cross multiply
    8,758.27x = 12,080.41 × 5,218.75
  4. Step 4: Simplify right side
    8,758.27x = 63,044,639.69
  5. Step 5: Solve for x
    x = 63,044,639.69/8,758.27
  6. Step 6: Final answer
    x = 7,198.30

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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.