Home / 16,879.60-23,309.40-11,306.80

Finding the Fourth Proportional to 16,879.60, 23,309.40 and 11,306.80

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Solution

The fourth proportional to 16,879.60, 23,309.40 and 11,306.80 is: 15,613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.60 : 23,309.40 = 11,306.80 : x
  2. Step 2: Convert to fraction form
    16,879.60/23,309.40 = 11,306.80/x
  3. Step 3: Cross multiply
    16,879.60x = 23,309.40 × 11,306.80
  4. Step 4: Simplify right side
    16,879.60x = 263,554,723.92
  5. Step 5: Solve for x
    x = 263,554,723.92/16,879.60
  6. Step 6: Final answer
    x = 15,613.80

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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.