Home / 13,039.29-19,538.79-8,805.95

Finding the Fourth Proportional to 13,039.29, 19,538.79 and 8,805.95

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Solution

The fourth proportional to 13,039.29, 19,538.79 and 8,805.95 is: 13,195.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.29 : 19,538.79 = 8,805.95 : x
  2. Step 2: Convert to fraction form
    13,039.29/19,538.79 = 8,805.95/x
  3. Step 3: Cross multiply
    13,039.29x = 19,538.79 × 8,805.95
  4. Step 4: Simplify right side
    13,039.29x = 172,057,510.11
  5. Step 5: Solve for x
    x = 172,057,510.11/13,039.29
  6. Step 6: Final answer
    x = 13,195.31

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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.