Home / 13,247.65-19,871.68-3,386.71

Finding the Fourth Proportional to 13,247.65, 19,871.68 and 3,386.71

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Solution

The fourth proportional to 13,247.65, 19,871.68 and 3,386.71 is: 5,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.65 : 19,871.68 = 3,386.71 : x
  2. Step 2: Convert to fraction form
    13,247.65/19,871.68 = 3,386.71/x
  3. Step 3: Cross multiply
    13,247.65x = 19,871.68 × 3,386.71
  4. Step 4: Simplify right side
    13,247.65x = 67,299,600.44
  5. Step 5: Solve for x
    x = 67,299,600.44/13,247.65
  6. Step 6: Final answer
    x = 5,080.12

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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.