Home / 10,104.45-15,147.28-5,163.18

Finding the Fourth Proportional to 10,104.45, 15,147.28 and 5,163.18

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Solution

The fourth proportional to 10,104.45, 15,147.28 and 5,163.18 is: 7,739.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,104.45 : 15,147.28 = 5,163.18 : x
  2. Step 2: Convert to fraction form
    10,104.45/15,147.28 = 5,163.18/x
  3. Step 3: Cross multiply
    10,104.45x = 15,147.28 × 5,163.18
  4. Step 4: Simplify right side
    10,104.45x = 78,208,133.15
  5. Step 5: Solve for x
    x = 78,208,133.15/10,104.45
  6. Step 6: Final answer
    x = 7,739.97

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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.