Home / 10,109.07-15,163.74-4,269.78

Finding the Fourth Proportional to 10,109.07, 15,163.74 and 4,269.78

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Solution

The fourth proportional to 10,109.07, 15,163.74 and 4,269.78 is: 6,404.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109.07 : 15,163.74 = 4,269.78 : x
  2. Step 2: Convert to fraction form
    10,109.07/15,163.74 = 4,269.78/x
  3. Step 3: Cross multiply
    10,109.07x = 15,163.74 × 4,269.78
  4. Step 4: Simplify right side
    10,109.07x = 64,745,833.78
  5. Step 5: Solve for x
    x = 64,745,833.78/10,109.07
  6. Step 6: Final answer
    x = 6,404.73

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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.