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Finding the Fourth Proportional to 18,530.80, 27,745.08 and 9,746.80

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Solution

The fourth proportional to 18,530.80, 27,745.08 and 9,746.80 is: 14,593.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,530.80 : 27,745.08 = 9,746.80 : x
  2. Step 2: Convert to fraction form
    18,530.80/27,745.08 = 9,746.80/x
  3. Step 3: Cross multiply
    18,530.80x = 27,745.08 × 9,746.80
  4. Step 4: Simplify right side
    18,530.80x = 270,425,745.74
  5. Step 5: Solve for x
    x = 270,425,745.74/18,530.80
  6. Step 6: Final answer
    x = 14,593.31

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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.