Home / 11,480.45-17,218.40-3,158.31

Finding the Fourth Proportional to 11,480.45, 17,218.40 and 3,158.31

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Solution

The fourth proportional to 11,480.45, 17,218.40 and 3,158.31 is: 4,736.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,480.45 : 17,218.40 = 3,158.31 : x
  2. Step 2: Convert to fraction form
    11,480.45/17,218.40 = 3,158.31/x
  3. Step 3: Cross multiply
    11,480.45x = 17,218.40 × 3,158.31
  4. Step 4: Simplify right side
    11,480.45x = 54,381,029.11
  5. Step 5: Solve for x
    x = 54,381,029.11/11,480.45
  6. Step 6: Final answer
    x = 4,736.84

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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.