Home / 10,145.57-15,217.83-3,571.80

Finding the Fourth Proportional to 10,145.57, 15,217.83 and 3,571.80

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Solution

The fourth proportional to 10,145.57, 15,217.83 and 3,571.80 is: 5,357.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.57 : 15,217.83 = 3,571.80 : x
  2. Step 2: Convert to fraction form
    10,145.57/15,217.83 = 3,571.80/x
  3. Step 3: Cross multiply
    10,145.57x = 15,217.83 × 3,571.80
  4. Step 4: Simplify right side
    10,145.57x = 54,355,045.19
  5. Step 5: Solve for x
    x = 54,355,045.19/10,145.57
  6. Step 6: Final answer
    x = 5,357.52

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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.