Home / 7,914.28-11,868.82-2,915.50

Finding the Fourth Proportional to 7,914.28, 11,868.82 and 2,915.50

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Solution

The fourth proportional to 7,914.28, 11,868.82 and 2,915.50 is: 4,372.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.28 : 11,868.82 = 2,915.50 : x
  2. Step 2: Convert to fraction form
    7,914.28/11,868.82 = 2,915.50/x
  3. Step 3: Cross multiply
    7,914.28x = 11,868.82 × 2,915.50
  4. Step 4: Simplify right side
    7,914.28x = 34,603,544.71
  5. Step 5: Solve for x
    x = 34,603,544.71/7,914.28
  6. Step 6: Final answer
    x = 4,372.29

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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.