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Finding the Fourth Proportional to 18,344.66, 27,511.22 and 7,814.57

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Solution

The fourth proportional to 18,344.66, 27,511.22 and 7,814.57 is: 11,719.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.66 : 27,511.22 = 7,814.57 : x
  2. Step 2: Convert to fraction form
    18,344.66/27,511.22 = 7,814.57/x
  3. Step 3: Cross multiply
    18,344.66x = 27,511.22 × 7,814.57
  4. Step 4: Simplify right side
    18,344.66x = 214,988,236.46
  5. Step 5: Solve for x
    x = 214,988,236.46/18,344.66
  6. Step 6: Final answer
    x = 11,719.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.