Home / 11,003.88-15,186.66-6,288.36

Finding the Fourth Proportional to 11,003.88, 15,186.66 and 6,288.36

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Solution

The fourth proportional to 11,003.88, 15,186.66 and 6,288.36 is: 8,678.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.88 : 15,186.66 = 6,288.36 : x
  2. Step 2: Convert to fraction form
    11,003.88/15,186.66 = 6,288.36/x
  3. Step 3: Cross multiply
    11,003.88x = 15,186.66 × 6,288.36
  4. Step 4: Simplify right side
    11,003.88x = 95,499,185.28
  5. Step 5: Solve for x
    x = 95,499,185.28/11,003.88
  6. Step 6: Final answer
    x = 8,678.68

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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.