Home / 10,991.56-16,488.96-3,199.36

Finding the Fourth Proportional to 10,991.56, 16,488.96 and 3,199.36

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Solution

The fourth proportional to 10,991.56, 16,488.96 and 3,199.36 is: 4,799.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.56 : 16,488.96 = 3,199.36 : x
  2. Step 2: Convert to fraction form
    10,991.56/16,488.96 = 3,199.36/x
  3. Step 3: Cross multiply
    10,991.56x = 16,488.96 × 3,199.36
  4. Step 4: Simplify right side
    10,991.56x = 52,754,119.07
  5. Step 5: Solve for x
    x = 52,754,119.07/10,991.56
  6. Step 6: Final answer
    x = 4,799.51

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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.