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Finding the Fourth Proportional to 14,961.80, 22,410.30 and 9,129.80

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Solution

The fourth proportional to 14,961.80, 22,410.30 and 9,129.80 is: 13,674.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.80 : 22,410.30 = 9,129.80 : x
  2. Step 2: Convert to fraction form
    14,961.80/22,410.30 = 9,129.80/x
  3. Step 3: Cross multiply
    14,961.80x = 22,410.30 × 9,129.80
  4. Step 4: Simplify right side
    14,961.80x = 204,601,556.94
  5. Step 5: Solve for x
    x = 204,601,556.94/14,961.80
  6. Step 6: Final answer
    x = 13,674.93

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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.