Home / 11,321.25-15,623.33-6,605.57

Finding the Fourth Proportional to 11,321.25, 15,623.33 and 6,605.57

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Solution

The fourth proportional to 11,321.25, 15,623.33 and 6,605.57 is: 9,115.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.25 : 15,623.33 = 6,605.57 : x
  2. Step 2: Convert to fraction form
    11,321.25/15,623.33 = 6,605.57/x
  3. Step 3: Cross multiply
    11,321.25x = 15,623.33 × 6,605.57
  4. Step 4: Simplify right side
    11,321.25x = 103,200,888.80
  5. Step 5: Solve for x
    x = 103,200,888.80/11,321.25
  6. Step 6: Final answer
    x = 9,115.68

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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.