Home / 11,138.46-15,371.07-6,103.05

Finding the Fourth Proportional to 11,138.46, 15,371.07 and 6,103.05

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Solution

The fourth proportional to 11,138.46, 15,371.07 and 6,103.05 is: 8,422.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.46 : 15,371.07 = 6,103.05 : x
  2. Step 2: Convert to fraction form
    11,138.46/15,371.07 = 6,103.05/x
  3. Step 3: Cross multiply
    11,138.46x = 15,371.07 × 6,103.05
  4. Step 4: Simplify right side
    11,138.46x = 93,810,408.76
  5. Step 5: Solve for x
    x = 93,810,408.76/11,138.46
  6. Step 6: Final answer
    x = 8,422.21

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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.