Home / 19,799.73-29,710.76-8,121.15

Finding the Fourth Proportional to 19,799.73, 29,710.76 and 8,121.15

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Solution

The fourth proportional to 19,799.73, 29,710.76 and 8,121.15 is: 12,186.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,799.73 : 29,710.76 = 8,121.15 : x
  2. Step 2: Convert to fraction form
    19,799.73/29,710.76 = 8,121.15/x
  3. Step 3: Cross multiply
    19,799.73x = 29,710.76 × 8,121.15
  4. Step 4: Simplify right side
    19,799.73x = 241,285,497.97
  5. Step 5: Solve for x
    x = 241,285,497.97/19,799.73
  6. Step 6: Final answer
    x = 12,186.30

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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.