Home / 17,276.75-25,915.80-5,438.60

Finding the Fourth Proportional to 17,276.75, 25,915.80 and 5,438.60

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Solution

The fourth proportional to 17,276.75, 25,915.80 and 5,438.60 is: 8,158.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,276.75 : 25,915.80 = 5,438.60 : x
  2. Step 2: Convert to fraction form
    17,276.75/25,915.80 = 5,438.60/x
  3. Step 3: Cross multiply
    17,276.75x = 25,915.80 × 5,438.60
  4. Step 4: Simplify right side
    17,276.75x = 140,945,669.88
  5. Step 5: Solve for x
    x = 140,945,669.88/17,276.75
  6. Step 6: Final answer
    x = 8,158.11

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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.