Home / 16,811.10-25,216.65-5,122.80

Finding the Fourth Proportional to 16,811.10, 25,216.65 and 5,122.80

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Solution

The fourth proportional to 16,811.10, 25,216.65 and 5,122.80 is: 7,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,811.10 : 25,216.65 = 5,122.80 : x
  2. Step 2: Convert to fraction form
    16,811.10/25,216.65 = 5,122.80/x
  3. Step 3: Cross multiply
    16,811.10x = 25,216.65 × 5,122.80
  4. Step 4: Simplify right side
    16,811.10x = 129,179,854.62
  5. Step 5: Solve for x
    x = 129,179,854.62/16,811.10
  6. Step 6: Final answer
    x = 7,684.20

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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.