Home / 13,673.13-20,510.82-3,812.49

Finding the Fourth Proportional to 13,673.13, 20,510.82 and 3,812.49

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Solution

The fourth proportional to 13,673.13, 20,510.82 and 3,812.49 is: 5,719.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.13 : 20,510.82 = 3,812.49 : x
  2. Step 2: Convert to fraction form
    13,673.13/20,510.82 = 3,812.49/x
  3. Step 3: Cross multiply
    13,673.13x = 20,510.82 × 3,812.49
  4. Step 4: Simplify right side
    13,673.13x = 78,197,296.14
  5. Step 5: Solve for x
    x = 78,197,296.14/13,673.13
  6. Step 6: Final answer
    x = 5,719.05

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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.