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Finding the Fourth Proportional to 18,118.71, 27,186.16 and 7,026.27

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Solution

The fourth proportional to 18,118.71, 27,186.16 and 7,026.27 is: 10,542.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.71 : 27,186.16 = 7,026.27 : x
  2. Step 2: Convert to fraction form
    18,118.71/27,186.16 = 7,026.27/x
  3. Step 3: Cross multiply
    18,118.71x = 27,186.16 × 7,026.27
  4. Step 4: Simplify right side
    18,118.71x = 191,017,282.86
  5. Step 5: Solve for x
    x = 191,017,282.86/18,118.71
  6. Step 6: Final answer
    x = 10,542.54

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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.