Home / 15,879.83-23,817.53-11,121.57

Finding the Fourth Proportional to 15,879.83, 23,817.53 and 11,121.57

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Solution

The fourth proportional to 15,879.83, 23,817.53 and 11,121.57 is: 16,680.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,879.83 : 23,817.53 = 11,121.57 : x
  2. Step 2: Convert to fraction form
    15,879.83/23,817.53 = 11,121.57/x
  3. Step 3: Cross multiply
    15,879.83x = 23,817.53 × 11,121.57
  4. Step 4: Simplify right side
    15,879.83x = 264,888,354.93
  5. Step 5: Solve for x
    x = 264,888,354.93/15,879.83
  6. Step 6: Final answer
    x = 16,680.81

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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.