Home / 11,724.39-16,179.75-7,247.12

Finding the Fourth Proportional to 11,724.39, 16,179.75 and 7,247.12

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Solution

The fourth proportional to 11,724.39, 16,179.75 and 7,247.12 is: 10,001.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.39 : 16,179.75 = 7,247.12 : x
  2. Step 2: Convert to fraction form
    11,724.39/16,179.75 = 7,247.12/x
  3. Step 3: Cross multiply
    11,724.39x = 16,179.75 × 7,247.12
  4. Step 4: Simplify right side
    11,724.39x = 117,256,508.92
  5. Step 5: Solve for x
    x = 117,256,508.92/11,724.39
  6. Step 6: Final answer
    x = 10,001.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.