Home / 10,449.20-15,668.44-3,518.64

Finding the Fourth Proportional to 10,449.20, 15,668.44 and 3,518.64

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Solution

The fourth proportional to 10,449.20, 15,668.44 and 3,518.64 is: 5,276.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,449.20 : 15,668.44 = 3,518.64 : x
  2. Step 2: Convert to fraction form
    10,449.20/15,668.44 = 3,518.64/x
  3. Step 3: Cross multiply
    10,449.20x = 15,668.44 × 3,518.64
  4. Step 4: Simplify right side
    10,449.20x = 55,131,599.72
  5. Step 5: Solve for x
    x = 55,131,599.72/10,449.20
  6. Step 6: Final answer
    x = 5,276.16

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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.