Home / 11,138.51-15,371.13-6,102.73

Finding the Fourth Proportional to 11,138.51, 15,371.13 and 6,102.73

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Solution

The fourth proportional to 11,138.51, 15,371.13 and 6,102.73 is: 8,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.51 : 15,371.13 = 6,102.73 : x
  2. Step 2: Convert to fraction form
    11,138.51/15,371.13 = 6,102.73/x
  3. Step 3: Cross multiply
    11,138.51x = 15,371.13 × 6,102.73
  4. Step 4: Simplify right side
    11,138.51x = 93,805,850.92
  5. Step 5: Solve for x
    x = 93,805,850.92/11,138.51
  6. Step 6: Final answer
    x = 8,421.76

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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.