Home / 10,412.53-15,620.09-3,838.75

Finding the Fourth Proportional to 10,412.53, 15,620.09 and 3,838.75

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Solution

The fourth proportional to 10,412.53, 15,620.09 and 3,838.75 is: 5,758.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,412.53 : 15,620.09 = 3,838.75 : x
  2. Step 2: Convert to fraction form
    10,412.53/15,620.09 = 3,838.75/x
  3. Step 3: Cross multiply
    10,412.53x = 15,620.09 × 3,838.75
  4. Step 4: Simplify right side
    10,412.53x = 59,961,620.49
  5. Step 5: Solve for x
    x = 59,961,620.49/10,412.53
  6. Step 6: Final answer
    x = 5,758.60

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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.