Home / 11,121.36-16,680.32-3,725.76

Finding the Fourth Proportional to 11,121.36, 16,680.32 and 3,725.76

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Solution

The fourth proportional to 11,121.36, 16,680.32 and 3,725.76 is: 5,588.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.36 : 16,680.32 = 3,725.76 : x
  2. Step 2: Convert to fraction form
    11,121.36/16,680.32 = 3,725.76/x
  3. Step 3: Cross multiply
    11,121.36x = 16,680.32 × 3,725.76
  4. Step 4: Simplify right side
    11,121.36x = 62,146,869.04
  5. Step 5: Solve for x
    x = 62,146,869.04/11,121.36
  6. Step 6: Final answer
    x = 5,588.06

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1.5x scale

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.