Home / 10,078.44-15,117.80-3,504.78

Finding the Fourth Proportional to 10,078.44, 15,117.80 and 3,504.78

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Solution

The fourth proportional to 10,078.44, 15,117.80 and 3,504.78 is: 5,257.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078.44 : 15,117.80 = 3,504.78 : x
  2. Step 2: Convert to fraction form
    10,078.44/15,117.80 = 3,504.78/x
  3. Step 3: Cross multiply
    10,078.44x = 15,117.80 × 3,504.78
  4. Step 4: Simplify right side
    10,078.44x = 52,984,563.08
  5. Step 5: Solve for x
    x = 52,984,563.08/10,078.44
  6. Step 6: Final answer
    x = 5,257.22

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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.