Home / 13,724.39-20,589.71-4,959.32

Finding the Fourth Proportional to 13,724.39, 20,589.71 and 4,959.32

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Solution

The fourth proportional to 13,724.39, 20,589.71 and 4,959.32 is: 7,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724.39 : 20,589.71 = 4,959.32 : x
  2. Step 2: Convert to fraction form
    13,724.39/20,589.71 = 4,959.32/x
  3. Step 3: Cross multiply
    13,724.39x = 20,589.71 × 4,959.32
  4. Step 4: Simplify right side
    13,724.39x = 102,110,832.85
  5. Step 5: Solve for x
    x = 102,110,832.85/13,724.39
  6. Step 6: Final answer
    x = 7,440.10

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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.