Home / 10,112.75-15,169.13-2,816.75

Finding the Fourth Proportional to 10,112.75, 15,169.13 and 2,816.75

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Solution

The fourth proportional to 10,112.75, 15,169.13 and 2,816.75 is: 4,225.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.75 : 15,169.13 = 2,816.75 : x
  2. Step 2: Convert to fraction form
    10,112.75/15,169.13 = 2,816.75/x
  3. Step 3: Cross multiply
    10,112.75x = 15,169.13 × 2,816.75
  4. Step 4: Simplify right side
    10,112.75x = 42,727,646.93
  5. Step 5: Solve for x
    x = 42,727,646.93/10,112.75
  6. Step 6: Final answer
    x = 4,225.13

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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.