Home / 15,456.15-23,148.16-11,285.81

Finding the Fourth Proportional to 15,456.15, 23,148.16 and 11,285.81

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Solution

The fourth proportional to 15,456.15, 23,148.16 and 11,285.81 is: 16,902.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,456.15 : 23,148.16 = 11,285.81 : x
  2. Step 2: Convert to fraction form
    15,456.15/23,148.16 = 11,285.81/x
  3. Step 3: Cross multiply
    15,456.15x = 23,148.16 × 11,285.81
  4. Step 4: Simplify right side
    15,456.15x = 261,245,720.78
  5. Step 5: Solve for x
    x = 261,245,720.78/15,456.15
  6. Step 6: Final answer
    x = 16,902.38

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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.