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Finding the Fourth Proportional to 8,019, 11,071.69 and 4,880.66

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Solution

The fourth proportional to 8,019, 11,071.69 and 4,880.66 is: 6,738.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,019 : 11,071.69 = 4,880.66 : x
  2. Step 2: Convert to fraction form
    8,019/11,071.69 = 4,880.66/x
  3. Step 3: Cross multiply
    8,019x = 11,071.69 × 4,880.66
  4. Step 4: Simplify right side
    8,019x = 54,037,086.96
  5. Step 5: Solve for x
    x = 54,037,086.96/8,019
  6. Step 6: Final answer
    x = 6,738.63

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Double 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.