Home / 13,215.14-19,822.66-3,354.38

Finding the Fourth Proportional to 13,215.14, 19,822.66 and 3,354.38

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Solution

The fourth proportional to 13,215.14, 19,822.66 and 3,354.38 is: 5,031.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.14 : 19,822.66 = 3,354.38 : x
  2. Step 2: Convert to fraction form
    13,215.14/19,822.66 = 3,354.38/x
  3. Step 3: Cross multiply
    13,215.14x = 19,822.66 × 3,354.38
  4. Step 4: Simplify right side
    13,215.14x = 66,492,734.25
  5. Step 5: Solve for x
    x = 66,492,734.25/13,215.14
  6. Step 6: Final answer
    x = 5,031.56

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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.