Home / 13,577.91-20,356.43-5,144.29

Finding the Fourth Proportional to 13,577.91, 20,356.43 and 5,144.29

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Solution

The fourth proportional to 13,577.91, 20,356.43 and 5,144.29 is: 7,712.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,577.91 : 20,356.43 = 5,144.29 : x
  2. Step 2: Convert to fraction form
    13,577.91/20,356.43 = 5,144.29/x
  3. Step 3: Cross multiply
    13,577.91x = 20,356.43 × 5,144.29
  4. Step 4: Simplify right side
    13,577.91x = 104,719,302.67
  5. Step 5: Solve for x
    x = 104,719,302.67/13,577.91
  6. Step 6: Final answer
    x = 7,712.48

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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.