Home / 12,708.41-19,067.19-7,720.96

Finding the Fourth Proportional to 12,708.41, 19,067.19 and 7,720.96

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Solution

The fourth proportional to 12,708.41, 19,067.19 and 7,720.96 is: 11,584.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,708.41 : 19,067.19 = 7,720.96 : x
  2. Step 2: Convert to fraction form
    12,708.41/19,067.19 = 7,720.96/x
  3. Step 3: Cross multiply
    12,708.41x = 19,067.19 × 7,720.96
  4. Step 4: Simplify right side
    12,708.41x = 147,217,058.00
  5. Step 5: Solve for x
    x = 147,217,058.00/12,708.41
  6. Step 6: Final answer
    x = 11,584.22

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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.