Home / 10,619.68-15,930.24-2,828.24

Finding the Fourth Proportional to 10,619.68, 15,930.24 and 2,828.24

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Solution

The fourth proportional to 10,619.68, 15,930.24 and 2,828.24 is: 4,242.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.68 : 15,930.24 = 2,828.24 : x
  2. Step 2: Convert to fraction form
    10,619.68/15,930.24 = 2,828.24/x
  3. Step 3: Cross multiply
    10,619.68x = 15,930.24 × 2,828.24
  4. Step 4: Simplify right side
    10,619.68x = 45,054,541.98
  5. Step 5: Solve for x
    x = 45,054,541.98/10,619.68
  6. Step 6: Final answer
    x = 4,242.55

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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.