Home / 11,103.16-15,320.10-6,625.48

Finding the Fourth Proportional to 11,103.16, 15,320.10 and 6,625.48

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Solution

The fourth proportional to 11,103.16, 15,320.10 and 6,625.48 is: 9,141.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103.16 : 15,320.10 = 6,625.48 : x
  2. Step 2: Convert to fraction form
    11,103.16/15,320.10 = 6,625.48/x
  3. Step 3: Cross multiply
    11,103.16x = 15,320.10 × 6,625.48
  4. Step 4: Simplify right side
    11,103.16x = 101,503,016.15
  5. Step 5: Solve for x
    x = 101,503,016.15/11,103.16
  6. Step 6: Final answer
    x = 9,141.81

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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.