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Finding the Fourth Proportional to 18,168.90, 27,253.07 and 5,020.98

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Solution

The fourth proportional to 18,168.90, 27,253.07 and 5,020.98 is: 7,531.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,168.90 : 27,253.07 = 5,020.98 : x
  2. Step 2: Convert to fraction form
    18,168.90/27,253.07 = 5,020.98/x
  3. Step 3: Cross multiply
    18,168.90x = 27,253.07 × 5,020.98
  4. Step 4: Simplify right side
    18,168.90x = 136,837,119.41
  5. Step 5: Solve for x
    x = 136,837,119.41/18,168.90
  6. Step 6: Final answer
    x = 7,531.39

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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.