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Finding the Fourth Proportional to 18,340.10, 27,502.05 and 7,243.10

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Solution

The fourth proportional to 18,340.10, 27,502.05 and 7,243.10 is: 10,861.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.10 : 27,502.05 = 7,243.10 : x
  2. Step 2: Convert to fraction form
    18,340.10/27,502.05 = 7,243.10/x
  3. Step 3: Cross multiply
    18,340.10x = 27,502.05 × 7,243.10
  4. Step 4: Simplify right side
    18,340.10x = 199,200,098.36
  5. Step 5: Solve for x
    x = 199,200,098.36/18,340.10
  6. Step 6: Final answer
    x = 10,861.45

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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.