Home / 17,418.74-26,128.07-4,938.78

Finding the Fourth Proportional to 17,418.74, 26,128.07 and 4,938.78

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Solution

The fourth proportional to 17,418.74, 26,128.07 and 4,938.78 is: 7,408.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,418.74 : 26,128.07 = 4,938.78 : x
  2. Step 2: Convert to fraction form
    17,418.74/26,128.07 = 4,938.78/x
  3. Step 3: Cross multiply
    17,418.74x = 26,128.07 × 4,938.78
  4. Step 4: Simplify right side
    17,418.74x = 129,040,685.72
  5. Step 5: Solve for x
    x = 129,040,685.72/17,418.74
  6. Step 6: Final answer
    x = 7,408.15

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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.