Home / 12,091.40-18,145.20-5,514.20

Finding the Fourth Proportional to 12,091.40, 18,145.20 and 5,514.20

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Solution

The fourth proportional to 12,091.40, 18,145.20 and 5,514.20 is: 8,274.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,091.40 : 18,145.20 = 5,514.20 : x
  2. Step 2: Convert to fraction form
    12,091.40/18,145.20 = 5,514.20/x
  3. Step 3: Cross multiply
    12,091.40x = 18,145.20 × 5,514.20
  4. Step 4: Simplify right side
    12,091.40x = 100,056,261.84
  5. Step 5: Solve for x
    x = 100,056,261.84/12,091.40
  6. Step 6: Final answer
    x = 8,274.99

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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.