Home / 12,708.09-19,067.58-6,139.17

Finding the Fourth Proportional to 12,708.09, 19,067.58 and 6,139.17

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Solution

The fourth proportional to 12,708.09, 19,067.58 and 6,139.17 is: 9,211.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,708.09 : 19,067.58 = 6,139.17 : x
  2. Step 2: Convert to fraction form
    12,708.09/19,067.58 = 6,139.17/x
  3. Step 3: Cross multiply
    12,708.09x = 19,067.58 × 6,139.17
  4. Step 4: Simplify right side
    12,708.09x = 117,059,115.11
  5. Step 5: Solve for x
    x = 117,059,115.11/12,708.09
  6. Step 6: Final answer
    x = 9,211.39

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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.