Home / 10,515.03-15,772.58-3,936.60

Finding the Fourth Proportional to 10,515.03, 15,772.58 and 3,936.60

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Solution

The fourth proportional to 10,515.03, 15,772.58 and 3,936.60 is: 5,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.03 : 15,772.58 = 3,936.60 : x
  2. Step 2: Convert to fraction form
    10,515.03/15,772.58 = 3,936.60/x
  3. Step 3: Cross multiply
    10,515.03x = 15,772.58 × 3,936.60
  4. Step 4: Simplify right side
    10,515.03x = 62,090,318.75
  5. Step 5: Solve for x
    x = 62,090,318.75/10,515.03
  6. Step 6: Final answer
    x = 5,904.91

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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.