Home / 11,987.73-16,508.61-11,951.28

Finding the Fourth Proportional to 11,987.73, 16,508.61 and 11,951.28

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Solution

The fourth proportional to 11,987.73, 16,508.61 and 11,951.28 is: 16,458.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.73 : 16,508.61 = 11,951.28 : x
  2. Step 2: Convert to fraction form
    11,987.73/16,508.61 = 11,951.28/x
  3. Step 3: Cross multiply
    11,987.73x = 16,508.61 × 11,951.28
  4. Step 4: Simplify right side
    11,987.73x = 197,299,020.52
  5. Step 5: Solve for x
    x = 197,299,020.52/11,987.73
  6. Step 6: Final answer
    x = 16,458.41

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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.