Home / 11,329.68-16,991.55-5,086.20

Finding the Fourth Proportional to 11,329.68, 16,991.55 and 5,086.20

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Solution

The fourth proportional to 11,329.68, 16,991.55 and 5,086.20 is: 7,627.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,329.68 : 16,991.55 = 5,086.20 : x
  2. Step 2: Convert to fraction form
    11,329.68/16,991.55 = 5,086.20/x
  3. Step 3: Cross multiply
    11,329.68x = 16,991.55 × 5,086.20
  4. Step 4: Simplify right side
    11,329.68x = 86,422,421.61
  5. Step 5: Solve for x
    x = 86,422,421.61/11,329.68
  6. Step 6: Final answer
    x = 7,627.97

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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.