Home / 10,102.97-15,144.73-5,174.93

Finding the Fourth Proportional to 10,102.97, 15,144.73 and 5,174.93

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Solution

The fourth proportional to 10,102.97, 15,144.73 and 5,174.93 is: 7,757.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,102.97 : 15,144.73 = 5,174.93 : x
  2. Step 2: Convert to fraction form
    10,102.97/15,144.73 = 5,174.93/x
  3. Step 3: Cross multiply
    10,102.97x = 15,144.73 × 5,174.93
  4. Step 4: Simplify right side
    10,102.97x = 78,372,886.23
  5. Step 5: Solve for x
    x = 78,372,886.23/10,102.97
  6. Step 6: Final answer
    x = 7,757.41

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1.5x scale

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.