Home / 11,131.75-16,690.33-9,017.65

Finding the Fourth Proportional to 11,131.75, 16,690.33 and 9,017.65

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Solution

The fourth proportional to 11,131.75, 16,690.33 and 9,017.65 is: 13,520.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.75 : 16,690.33 = 9,017.65 : x
  2. Step 2: Convert to fraction form
    11,131.75/16,690.33 = 9,017.65/x
  3. Step 3: Cross multiply
    11,131.75x = 16,690.33 × 9,017.65
  4. Step 4: Simplify right side
    11,131.75x = 150,507,554.32
  5. Step 5: Solve for x
    x = 150,507,554.32/11,131.75
  6. Step 6: Final answer
    x = 13,520.57

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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.