Home / 12,272.19-16,817.61-11,091.21

Finding the Fourth Proportional to 12,272.19, 16,817.61 and 11,091.21

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Solution

The fourth proportional to 12,272.19, 16,817.61 and 11,091.21 is: 15,199.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.19 : 16,817.61 = 11,091.21 : x
  2. Step 2: Convert to fraction form
    12,272.19/16,817.61 = 11,091.21/x
  3. Step 3: Cross multiply
    12,272.19x = 16,817.61 × 11,091.21
  4. Step 4: Simplify right side
    12,272.19x = 186,527,644.21
  5. Step 5: Solve for x
    x = 186,527,644.21/12,272.19
  6. Step 6: Final answer
    x = 15,199.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.