Home / 10,147.26-15,222.33-3,127.85

Finding the Fourth Proportional to 10,147.26, 15,222.33 and 3,127.85

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Solution

The fourth proportional to 10,147.26, 15,222.33 and 3,127.85 is: 4,692.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.26 : 15,222.33 = 3,127.85 : x
  2. Step 2: Convert to fraction form
    10,147.26/15,222.33 = 3,127.85/x
  3. Step 3: Cross multiply
    10,147.26x = 15,222.33 × 3,127.85
  4. Step 4: Simplify right side
    10,147.26x = 47,613,088.78
  5. Step 5: Solve for x
    x = 47,613,088.78/10,147.26
  6. Step 6: Final answer
    x = 4,692.21

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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.