Home / 7,915.62-11,876.63-2,986.67

Finding the Fourth Proportional to 7,915.62, 11,876.63 and 2,986.67

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Solution

The fourth proportional to 7,915.62, 11,876.63 and 2,986.67 is: 4,481.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.62 : 11,876.63 = 2,986.67 : x
  2. Step 2: Convert to fraction form
    7,915.62/11,876.63 = 2,986.67/x
  3. Step 3: Cross multiply
    7,915.62x = 11,876.63 × 2,986.67
  4. Step 4: Simplify right side
    7,915.62x = 35,471,589.28
  5. Step 5: Solve for x
    x = 35,471,589.28/7,915.62
  6. Step 6: Final answer
    x = 4,481.21

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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.