Home / 10,110.12-15,137.22-5,169.12

Finding the Fourth Proportional to 10,110.12, 15,137.22 and 5,169.12

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Solution

The fourth proportional to 10,110.12, 15,137.22 and 5,169.12 is: 7,739.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,110.12 : 15,137.22 = 5,169.12 : x
  2. Step 2: Convert to fraction form
    10,110.12/15,137.22 = 5,169.12/x
  3. Step 3: Cross multiply
    10,110.12x = 15,137.22 × 5,169.12
  4. Step 4: Simplify right side
    10,110.12x = 78,246,106.65
  5. Step 5: Solve for x
    x = 78,246,106.65/10,110.12
  6. Step 6: Final answer
    x = 7,739.38

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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.