Home / 10,212.46-15,319.19-2,816.75

Finding the Fourth Proportional to 10,212.46, 15,319.19 and 2,816.75

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Solution

The fourth proportional to 10,212.46, 15,319.19 and 2,816.75 is: 4,225.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,212.46 : 15,319.19 = 2,816.75 : x
  2. Step 2: Convert to fraction form
    10,212.46/15,319.19 = 2,816.75/x
  3. Step 3: Cross multiply
    10,212.46x = 15,319.19 × 2,816.75
  4. Step 4: Simplify right side
    10,212.46x = 43,150,328.43
  5. Step 5: Solve for x
    x = 43,150,328.43/10,212.46
  6. Step 6: Final answer
    x = 4,225.26

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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.