Home / 10,121.87-15,170.85-4,568.69

Finding the Fourth Proportional to 10,121.87, 15,170.85 and 4,568.69

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Solution

The fourth proportional to 10,121.87, 15,170.85 and 4,568.69 is: 6,847.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.87 : 15,170.85 = 4,568.69 : x
  2. Step 2: Convert to fraction form
    10,121.87/15,170.85 = 4,568.69/x
  3. Step 3: Cross multiply
    10,121.87x = 15,170.85 × 4,568.69
  4. Step 4: Simplify right side
    10,121.87x = 69,310,834.83
  5. Step 5: Solve for x
    x = 69,310,834.83/10,121.87
  6. Step 6: Final answer
    x = 6,847.63

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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.