Home / 16,758.20-25,115.40-8,447.60

Finding the Fourth Proportional to 16,758.20, 25,115.40 and 8,447.60

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Solution

The fourth proportional to 16,758.20, 25,115.40 and 8,447.60 is: 12,660.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,758.20 : 25,115.40 = 8,447.60 : x
  2. Step 2: Convert to fraction form
    16,758.20/25,115.40 = 8,447.60/x
  3. Step 3: Cross multiply
    16,758.20x = 25,115.40 × 8,447.60
  4. Step 4: Simplify right side
    16,758.20x = 212,164,853.04
  5. Step 5: Solve for x
    x = 212,164,853.04/16,758.20
  6. Step 6: Final answer
    x = 12,660.36

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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.