Home / 11,139.14-15,371.97-6,103.34

Finding the Fourth Proportional to 11,139.14, 15,371.97 and 6,103.34

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Solution

The fourth proportional to 11,139.14, 15,371.97 and 6,103.34 is: 8,422.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.14 : 15,371.97 = 6,103.34 : x
  2. Step 2: Convert to fraction form
    11,139.14/15,371.97 = 6,103.34/x
  3. Step 3: Cross multiply
    11,139.14x = 15,371.97 × 6,103.34
  4. Step 4: Simplify right side
    11,139.14x = 93,820,282.52
  5. Step 5: Solve for x
    x = 93,820,282.52/11,139.14
  6. Step 6: Final answer
    x = 8,422.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.