Home / 11,187.20-16,776.32-3,393.28

Finding the Fourth Proportional to 11,187.20, 16,776.32 and 3,393.28

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Solution

The fourth proportional to 11,187.20, 16,776.32 and 3,393.28 is: 5,088.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.20 : 16,776.32 = 3,393.28 : x
  2. Step 2: Convert to fraction form
    11,187.20/16,776.32 = 3,393.28/x
  3. Step 3: Cross multiply
    11,187.20x = 16,776.32 × 3,393.28
  4. Step 4: Simplify right side
    11,187.20x = 56,926,751.13
  5. Step 5: Solve for x
    x = 56,926,751.13/11,187.20
  6. Step 6: Final answer
    x = 5,088.56

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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.