Home / 11,329.54-16,991.07-5,779.42

Finding the Fourth Proportional to 11,329.54, 16,991.07 and 5,779.42

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Solution

The fourth proportional to 11,329.54, 16,991.07 and 5,779.42 is: 8,667.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,329.54 : 16,991.07 = 5,779.42 : x
  2. Step 2: Convert to fraction form
    11,329.54/16,991.07 = 5,779.42/x
  3. Step 3: Cross multiply
    11,329.54x = 16,991.07 × 5,779.42
  4. Step 4: Simplify right side
    11,329.54x = 98,198,529.78
  5. Step 5: Solve for x
    x = 98,198,529.78/11,329.54
  6. Step 6: Final answer
    x = 8,667.48

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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.