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Finding the Fourth Proportional to 18,008.52, 27,019.26 and 13,069.80

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Solution

The fourth proportional to 18,008.52, 27,019.26 and 13,069.80 is: 19,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,008.52 : 27,019.26 = 13,069.80 : x
  2. Step 2: Convert to fraction form
    18,008.52/27,019.26 = 13,069.80/x
  3. Step 3: Cross multiply
    18,008.52x = 27,019.26 × 13,069.80
  4. Step 4: Simplify right side
    18,008.52x = 353,136,324.35
  5. Step 5: Solve for x
    x = 353,136,324.35/18,008.52
  6. Step 6: Final answer
    x = 19,609.40

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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.