Home / 16,986.60-25,479.90-5,299.83

Finding the Fourth Proportional to 16,986.60, 25,479.90 and 5,299.83

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Solution

The fourth proportional to 16,986.60, 25,479.90 and 5,299.83 is: 7,949.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,986.60 : 25,479.90 = 5,299.83 : x
  2. Step 2: Convert to fraction form
    16,986.60/25,479.90 = 5,299.83/x
  3. Step 3: Cross multiply
    16,986.60x = 25,479.90 × 5,299.83
  4. Step 4: Simplify right side
    16,986.60x = 135,039,138.42
  5. Step 5: Solve for x
    x = 135,039,138.42/16,986.60
  6. Step 6: Final answer
    x = 7,949.75

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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.