Home / 11,131.68-16,700.08-3,340.64

Finding the Fourth Proportional to 11,131.68, 16,700.08 and 3,340.64

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Solution

The fourth proportional to 11,131.68, 16,700.08 and 3,340.64 is: 5,011.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.68 : 16,700.08 = 3,340.64 : x
  2. Step 2: Convert to fraction form
    11,131.68/16,700.08 = 3,340.64/x
  3. Step 3: Cross multiply
    11,131.68x = 16,700.08 × 3,340.64
  4. Step 4: Simplify right side
    11,131.68x = 55,788,955.25
  5. Step 5: Solve for x
    x = 55,788,955.25/11,131.68
  6. Step 6: Final answer
    x = 5,011.73

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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.