Home / 10,078.26-15,198.02-9,939.75

Finding the Fourth Proportional to 10,078.26, 15,198.02 and 9,939.75

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Solution

The fourth proportional to 10,078.26, 15,198.02 and 9,939.75 is: 14,989.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078.26 : 15,198.02 = 9,939.75 : x
  2. Step 2: Convert to fraction form
    10,078.26/15,198.02 = 9,939.75/x
  3. Step 3: Cross multiply
    10,078.26x = 15,198.02 × 9,939.75
  4. Step 4: Simplify right side
    10,078.26x = 151,064,469.60
  5. Step 5: Solve for x
    x = 151,064,469.60/10,078.26
  6. Step 6: Final answer
    x = 14,989.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.