Home / 15,115.09-22,672.61-4,021.78

Finding the Fourth Proportional to 15,115.09, 22,672.61 and 4,021.78

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Solution

The fourth proportional to 15,115.09, 22,672.61 and 4,021.78 is: 6,032.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,115.09 : 22,672.61 = 4,021.78 : x
  2. Step 2: Convert to fraction form
    15,115.09/22,672.61 = 4,021.78/x
  3. Step 3: Cross multiply
    15,115.09x = 22,672.61 × 4,021.78
  4. Step 4: Simplify right side
    15,115.09x = 91,184,172.66
  5. Step 5: Solve for x
    x = 91,184,172.66/15,115.09
  6. Step 6: Final answer
    x = 6,032.66

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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.