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Finding the Fourth Proportional to 18,071.62, 27,122.04 and 9,309.04

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Solution

The fourth proportional to 18,071.62, 27,122.04 and 9,309.04 is: 13,971.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,071.62 : 27,122.04 = 9,309.04 : x
  2. Step 2: Convert to fraction form
    18,071.62/27,122.04 = 9,309.04/x
  3. Step 3: Cross multiply
    18,071.62x = 27,122.04 × 9,309.04
  4. Step 4: Simplify right side
    18,071.62x = 252,480,155.24
  5. Step 5: Solve for x
    x = 252,480,155.24/18,071.62
  6. Step 6: Final answer
    x = 13,971.09

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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.