Home / 10,619.09-15,928.97-2,721.66

Finding the Fourth Proportional to 10,619.09, 15,928.97 and 2,721.66

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Solution

The fourth proportional to 10,619.09, 15,928.97 and 2,721.66 is: 4,082.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.09 : 15,928.97 = 2,721.66 : x
  2. Step 2: Convert to fraction form
    10,619.09/15,928.97 = 2,721.66/x
  3. Step 3: Cross multiply
    10,619.09x = 15,928.97 × 2,721.66
  4. Step 4: Simplify right side
    10,619.09x = 43,353,240.49
  5. Step 5: Solve for x
    x = 43,353,240.49/10,619.09
  6. Step 6: Final answer
    x = 4,082.58

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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.