Home / 11,660.49-16,099.76-7,185.65

Finding the Fourth Proportional to 11,660.49, 16,099.76 and 7,185.65

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Solution

The fourth proportional to 11,660.49, 16,099.76 and 7,185.65 is: 9,921.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,660.49 : 16,099.76 = 7,185.65 : x
  2. Step 2: Convert to fraction form
    11,660.49/16,099.76 = 7,185.65/x
  3. Step 3: Cross multiply
    11,660.49x = 16,099.76 × 7,185.65
  4. Step 4: Simplify right side
    11,660.49x = 115,687,177.91
  5. Step 5: Solve for x
    x = 115,687,177.91/11,660.49
  6. Step 6: Final answer
    x = 9,921.30

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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.