Home / 17,419.74-26,129.57-4,939.78

Finding the Fourth Proportional to 17,419.74, 26,129.57 and 4,939.78

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Solution

The fourth proportional to 17,419.74, 26,129.57 and 4,939.78 is: 7,409.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,419.74 : 26,129.57 = 4,939.78 : x
  2. Step 2: Convert to fraction form
    17,419.74/26,129.57 = 4,939.78/x
  3. Step 3: Cross multiply
    17,419.74x = 26,129.57 × 4,939.78
  4. Step 4: Simplify right side
    17,419.74x = 129,074,327.29
  5. Step 5: Solve for x
    x = 129,074,327.29/17,419.74
  6. Step 6: Final answer
    x = 7,409.66

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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.