Home / 8,819.28-13,208.64-4,915.04

Finding the Fourth Proportional to 8,819.28, 13,208.64 and 4,915.04

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Solution

The fourth proportional to 8,819.28, 13,208.64 and 4,915.04 is: 7,361.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.28 : 13,208.64 = 4,915.04 : x
  2. Step 2: Convert to fraction form
    8,819.28/13,208.64 = 4,915.04/x
  3. Step 3: Cross multiply
    8,819.28x = 13,208.64 × 4,915.04
  4. Step 4: Simplify right side
    8,819.28x = 64,920,993.95
  5. Step 5: Solve for x
    x = 64,920,993.95/8,819.28
  6. Step 6: Final answer
    x = 7,361.26

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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.