Home / 12,167.75-16,766.57-8,975.99

Finding the Fourth Proportional to 12,167.75, 16,766.57 and 8,975.99

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Solution

The fourth proportional to 12,167.75, 16,766.57 and 8,975.99 is: 12,368.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.75 : 16,766.57 = 8,975.99 : x
  2. Step 2: Convert to fraction form
    12,167.75/16,766.57 = 8,975.99/x
  3. Step 3: Cross multiply
    12,167.75x = 16,766.57 × 8,975.99
  4. Step 4: Simplify right side
    12,167.75x = 150,496,629.01
  5. Step 5: Solve for x
    x = 150,496,629.01/12,167.75
  6. Step 6: Final answer
    x = 12,368.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.