Home / 11,003.75-15,185.20-6,288.02

Finding the Fourth Proportional to 11,003.75, 15,185.20 and 6,288.02

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Solution

The fourth proportional to 11,003.75, 15,185.20 and 6,288.02 is: 8,677.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.75 : 15,185.20 = 6,288.02 : x
  2. Step 2: Convert to fraction form
    11,003.75/15,185.20 = 6,288.02/x
  3. Step 3: Cross multiply
    11,003.75x = 15,185.20 × 6,288.02
  4. Step 4: Simplify right side
    11,003.75x = 95,484,841.30
  5. Step 5: Solve for x
    x = 95,484,841.30/11,003.75
  6. Step 6: Final answer
    x = 8,677.48

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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.