Home / 13,486.05-20,228.40-3,625.11

Finding the Fourth Proportional to 13,486.05, 20,228.40 and 3,625.11

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Solution

The fourth proportional to 13,486.05, 20,228.40 and 3,625.11 is: 5,437.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.05 : 20,228.40 = 3,625.11 : x
  2. Step 2: Convert to fraction form
    13,486.05/20,228.40 = 3,625.11/x
  3. Step 3: Cross multiply
    13,486.05x = 20,228.40 × 3,625.11
  4. Step 4: Simplify right side
    13,486.05x = 73,330,175.12
  5. Step 5: Solve for x
    x = 73,330,175.12/13,486.05
  6. Step 6: Final answer
    x = 5,437.48

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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.