Home / 10,449.64-15,664.38-3,520.36

Finding the Fourth Proportional to 10,449.64, 15,664.38 and 3,520.36

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Solution

The fourth proportional to 10,449.64, 15,664.38 and 3,520.36 is: 5,277.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,449.64 : 15,664.38 = 3,520.36 : x
  2. Step 2: Convert to fraction form
    10,449.64/15,664.38 = 3,520.36/x
  3. Step 3: Cross multiply
    10,449.64x = 15,664.38 × 3,520.36
  4. Step 4: Simplify right side
    10,449.64x = 55,144,256.78
  5. Step 5: Solve for x
    x = 55,144,256.78/10,449.64
  6. Step 6: Final answer
    x = 5,277.14

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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.