Home / 15,951.24-21,959.46-11,965.68

Finding the Fourth Proportional to 15,951.24, 21,959.46 and 11,965.68

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Solution

The fourth proportional to 15,951.24, 21,959.46 and 11,965.68 is: 16,472.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,951.24 : 21,959.46 = 11,965.68 : x
  2. Step 2: Convert to fraction form
    15,951.24/21,959.46 = 11,965.68/x
  3. Step 3: Cross multiply
    15,951.24x = 21,959.46 × 11,965.68
  4. Step 4: Simplify right side
    15,951.24x = 262,759,871.33
  5. Step 5: Solve for x
    x = 262,759,871.33/15,951.24
  6. Step 6: Final answer
    x = 16,472.69

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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.