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Finding the Fourth Proportional to 18,064.26, 27,078.78 and 7,537.32

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Solution

The fourth proportional to 18,064.26, 27,078.78 and 7,537.32 is: 11,298.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,064.26 : 27,078.78 = 7,537.32 : x
  2. Step 2: Convert to fraction form
    18,064.26/27,078.78 = 7,537.32/x
  3. Step 3: Cross multiply
    18,064.26x = 27,078.78 × 7,537.32
  4. Step 4: Simplify right side
    18,064.26x = 204,101,430.07
  5. Step 5: Solve for x
    x = 204,101,430.07/18,064.26
  6. Step 6: Final answer
    x = 11,298.63

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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.