Home / 10,112.25-15,168.38-2,816.25

Finding the Fourth Proportional to 10,112.25, 15,168.38 and 2,816.25

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Solution

The fourth proportional to 10,112.25, 15,168.38 and 2,816.25 is: 4,224.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.25 : 15,168.38 = 2,816.25 : x
  2. Step 2: Convert to fraction form
    10,112.25/15,168.38 = 2,816.25/x
  3. Step 3: Cross multiply
    10,112.25x = 15,168.38 × 2,816.25
  4. Step 4: Simplify right side
    10,112.25x = 42,717,950.18
  5. Step 5: Solve for x
    x = 42,717,950.18/10,112.25
  6. Step 6: Final answer
    x = 4,224.38

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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.