Home / 11,003.88-15,185.28-6,288.12

Finding the Fourth Proportional to 11,003.88, 15,185.28 and 6,288.12

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Solution

The fourth proportional to 11,003.88, 15,185.28 and 6,288.12 is: 8,677.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.88 : 15,185.28 = 6,288.12 : x
  2. Step 2: Convert to fraction form
    11,003.88/15,185.28 = 6,288.12/x
  3. Step 3: Cross multiply
    11,003.88x = 15,185.28 × 6,288.12
  4. Step 4: Simplify right side
    11,003.88x = 95,486,862.87
  5. Step 5: Solve for x
    x = 95,486,862.87/11,003.88
  6. Step 6: Final answer
    x = 8,677.56

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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.