Home / 19,799.56-29,699.25-8,112.79

Finding the Fourth Proportional to 19,799.56, 29,699.25 and 8,112.79

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Solution

The fourth proportional to 19,799.56, 29,699.25 and 8,112.79 is: 12,169.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,799.56 : 29,699.25 = 8,112.79 : x
  2. Step 2: Convert to fraction form
    19,799.56/29,699.25 = 8,112.79/x
  3. Step 3: Cross multiply
    19,799.56x = 29,699.25 × 8,112.79
  4. Step 4: Simplify right side
    19,799.56x = 240,943,778.41
  5. Step 5: Solve for x
    x = 240,943,778.41/19,799.56
  6. Step 6: Final answer
    x = 12,169.15

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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.