Home / 11,724.72-16,180.56-6,689.76

Finding the Fourth Proportional to 11,724.72, 16,180.56 and 6,689.76

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Solution

The fourth proportional to 11,724.72, 16,180.56 and 6,689.76 is: 9,232.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.72 : 16,180.56 = 6,689.76 : x
  2. Step 2: Convert to fraction form
    11,724.72/16,180.56 = 6,689.76/x
  3. Step 3: Cross multiply
    11,724.72x = 16,180.56 × 6,689.76
  4. Step 4: Simplify right side
    11,724.72x = 108,244,063.07
  5. Step 5: Solve for x
    x = 108,244,063.07/11,724.72
  6. Step 6: Final answer
    x = 9,232.12

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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.