Home / 13,538.13-20,308.41-3,677.46

Finding the Fourth Proportional to 13,538.13, 20,308.41 and 3,677.46

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Solution

The fourth proportional to 13,538.13, 20,308.41 and 3,677.46 is: 5,516.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.13 : 20,308.41 = 3,677.46 : x
  2. Step 2: Convert to fraction form
    13,538.13/20,308.41 = 3,677.46/x
  3. Step 3: Cross multiply
    13,538.13x = 20,308.41 × 3,677.46
  4. Step 4: Simplify right side
    13,538.13x = 74,683,365.44
  5. Step 5: Solve for x
    x = 74,683,365.44/13,538.13
  6. Step 6: Final answer
    x = 5,516.52

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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.