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Finding the Fourth Proportional to 18,370.26, 27,551.16 and 9,000.90

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Solution

The fourth proportional to 18,370.26, 27,551.16 and 9,000.90 is: 13,499.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,370.26 : 27,551.16 = 9,000.90 : x
  2. Step 2: Convert to fraction form
    18,370.26/27,551.16 = 9,000.90/x
  3. Step 3: Cross multiply
    18,370.26x = 27,551.16 × 9,000.90
  4. Step 4: Simplify right side
    18,370.26x = 247,985,236.04
  5. Step 5: Solve for x
    x = 247,985,236.04/18,370.26
  6. Step 6: Final answer
    x = 13,499.28

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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.