Home / 15,515.62-23,286.86-8,125.25

Finding the Fourth Proportional to 15,515.62, 23,286.86 and 8,125.25

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Solution

The fourth proportional to 15,515.62, 23,286.86 and 8,125.25 is: 12,194.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,515.62 : 23,286.86 = 8,125.25 : x
  2. Step 2: Convert to fraction form
    15,515.62/23,286.86 = 8,125.25/x
  3. Step 3: Cross multiply
    15,515.62x = 23,286.86 × 8,125.25
  4. Step 4: Simplify right side
    15,515.62x = 189,211,559.22
  5. Step 5: Solve for x
    x = 189,211,559.22/15,515.62
  6. Step 6: Final answer
    x = 12,194.91

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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.