Home / 11,208.80-16,815.02-4,191.26

Finding the Fourth Proportional to 11,208.80, 16,815.02 and 4,191.26

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Solution

The fourth proportional to 11,208.80, 16,815.02 and 4,191.26 is: 6,287.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.80 : 16,815.02 = 4,191.26 : x
  2. Step 2: Convert to fraction form
    11,208.80/16,815.02 = 4,191.26/x
  3. Step 3: Cross multiply
    11,208.80x = 16,815.02 × 4,191.26
  4. Step 4: Simplify right side
    11,208.80x = 70,476,120.73
  5. Step 5: Solve for x
    x = 70,476,120.73/11,208.80
  6. Step 6: Final answer
    x = 6,287.57

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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.