Home / 12,829.82-19,251.38-9,708.90

Finding the Fourth Proportional to 12,829.82, 19,251.38 and 9,708.90

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Solution

The fourth proportional to 12,829.82, 19,251.38 and 9,708.90 is: 14,568.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,829.82 : 19,251.38 = 9,708.90 : x
  2. Step 2: Convert to fraction form
    12,829.82/19,251.38 = 9,708.90/x
  3. Step 3: Cross multiply
    12,829.82x = 19,251.38 × 9,708.90
  4. Step 4: Simplify right side
    12,829.82x = 186,909,723.28
  5. Step 5: Solve for x
    x = 186,909,723.28/12,829.82
  6. Step 6: Final answer
    x = 14,568.38

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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.