Home / 7,847.16-11,767.70-2,915.69

Finding the Fourth Proportional to 7,847.16, 11,767.70 and 2,915.69

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Solution

The fourth proportional to 7,847.16, 11,767.70 and 2,915.69 is: 4,372.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.16 : 11,767.70 = 2,915.69 : x
  2. Step 2: Convert to fraction form
    7,847.16/11,767.70 = 2,915.69/x
  3. Step 3: Cross multiply
    7,847.16x = 11,767.70 × 2,915.69
  4. Step 4: Simplify right side
    7,847.16x = 34,310,891.80
  5. Step 5: Solve for x
    x = 34,310,891.80/7,847.16
  6. Step 6: Final answer
    x = 4,372.40

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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.