Home / 11,025.05-15,213.78-6,243.62

Finding the Fourth Proportional to 11,025.05, 15,213.78 and 6,243.62

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Solution

The fourth proportional to 11,025.05, 15,213.78 and 6,243.62 is: 8,615.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,025.05 : 15,213.78 = 6,243.62 : x
  2. Step 2: Convert to fraction form
    11,025.05/15,213.78 = 6,243.62/x
  3. Step 3: Cross multiply
    11,025.05x = 15,213.78 × 6,243.62
  4. Step 4: Simplify right side
    11,025.05x = 94,989,061.08
  5. Step 5: Solve for x
    x = 94,989,061.08/11,025.05
  6. Step 6: Final answer
    x = 8,615.75

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Half scale
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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.