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Finding the Fourth Proportional to 18,110.22, 27,150.72 and 7,011.18

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Solution

The fourth proportional to 18,110.22, 27,150.72 and 7,011.18 is: 10,511.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,110.22 : 27,150.72 = 7,011.18 : x
  2. Step 2: Convert to fraction form
    18,110.22/27,150.72 = 7,011.18/x
  3. Step 3: Cross multiply
    18,110.22x = 27,150.72 × 7,011.18
  4. Step 4: Simplify right side
    18,110.22x = 190,358,585.05
  5. Step 5: Solve for x
    x = 190,358,585.05/18,110.22
  6. Step 6: Final answer
    x = 10,511.11

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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.