Home / 10,450.64-15,665.88-3,521.36

Finding the Fourth Proportional to 10,450.64, 15,665.88 and 3,521.36

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Solution

The fourth proportional to 10,450.64, 15,665.88 and 3,521.36 is: 5,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,450.64 : 15,665.88 = 3,521.36 : x
  2. Step 2: Convert to fraction form
    10,450.64/15,665.88 = 3,521.36/x
  3. Step 3: Cross multiply
    10,450.64x = 15,665.88 × 3,521.36
  4. Step 4: Simplify right side
    10,450.64x = 55,165,203.20
  5. Step 5: Solve for x
    x = 55,165,203.20/10,450.64
  6. Step 6: Final answer
    x = 5,278.64

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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.