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Finding the Fourth Proportional to 18,539.33, 27,809.68 and 9,531.03

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Solution

The fourth proportional to 18,539.33, 27,809.68 and 9,531.03 is: 14,296.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,539.33 : 27,809.68 = 9,531.03 : x
  2. Step 2: Convert to fraction form
    18,539.33/27,809.68 = 9,531.03/x
  3. Step 3: Cross multiply
    18,539.33x = 27,809.68 × 9,531.03
  4. Step 4: Simplify right side
    18,539.33x = 265,054,992.70
  5. Step 5: Solve for x
    x = 265,054,992.70/18,539.33
  6. Step 6: Final answer
    x = 14,296.90

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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.