Home / 13,614.12-20,386.13-8,071.38

Finding the Fourth Proportional to 13,614.12, 20,386.13 and 8,071.38

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Solution

The fourth proportional to 13,614.12, 20,386.13 and 8,071.38 is: 12,086.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.12 : 20,386.13 = 8,071.38 : x
  2. Step 2: Convert to fraction form
    13,614.12/20,386.13 = 8,071.38/x
  3. Step 3: Cross multiply
    13,614.12x = 20,386.13 × 8,071.38
  4. Step 4: Simplify right side
    13,614.12x = 164,544,161.60
  5. Step 5: Solve for x
    x = 164,544,161.60/13,614.12
  6. Step 6: Final answer
    x = 12,086.29

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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.