Home / 10,091.88-15,136.86-3,165.16

Finding the Fourth Proportional to 10,091.88, 15,136.86 and 3,165.16

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Solution

The fourth proportional to 10,091.88, 15,136.86 and 3,165.16 is: 4,747.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.88 : 15,136.86 = 3,165.16 : x
  2. Step 2: Convert to fraction form
    10,091.88/15,136.86 = 3,165.16/x
  3. Step 3: Cross multiply
    10,091.88x = 15,136.86 × 3,165.16
  4. Step 4: Simplify right side
    10,091.88x = 47,910,583.80
  5. Step 5: Solve for x
    x = 47,910,583.80/10,091.88
  6. Step 6: Final answer
    x = 4,747.44

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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.