Home / 13,309.26-19,975.17-5,417.61

Finding the Fourth Proportional to 13,309.26, 19,975.17 and 5,417.61

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Solution

The fourth proportional to 13,309.26, 19,975.17 and 5,417.61 is: 8,131.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.26 : 19,975.17 = 5,417.61 : x
  2. Step 2: Convert to fraction form
    13,309.26/19,975.17 = 5,417.61/x
  3. Step 3: Cross multiply
    13,309.26x = 19,975.17 × 5,417.61
  4. Step 4: Simplify right side
    13,309.26x = 108,217,680.74
  5. Step 5: Solve for x
    x = 108,217,680.74/13,309.26
  6. Step 6: Final answer
    x = 8,131.01

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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.