Home / 13,744.32-20,616.36-4,979.04

Finding the Fourth Proportional to 13,744.32, 20,616.36 and 4,979.04

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Solution

The fourth proportional to 13,744.32, 20,616.36 and 4,979.04 is: 7,468.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744.32 : 20,616.36 = 4,979.04 : x
  2. Step 2: Convert to fraction form
    13,744.32/20,616.36 = 4,979.04/x
  3. Step 3: Cross multiply
    13,744.32x = 20,616.36 × 4,979.04
  4. Step 4: Simplify right side
    13,744.32x = 102,649,681.09
  5. Step 5: Solve for x
    x = 102,649,681.09/13,744.32
  6. Step 6: Final answer
    x = 7,468.52

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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.