Home / 10,427.46-15,643.61-3,407.79

Finding the Fourth Proportional to 10,427.46, 15,643.61 and 3,407.79

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Solution

The fourth proportional to 10,427.46, 15,643.61 and 3,407.79 is: 5,112.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.46 : 15,643.61 = 3,407.79 : x
  2. Step 2: Convert to fraction form
    10,427.46/15,643.61 = 3,407.79/x
  3. Step 3: Cross multiply
    10,427.46x = 15,643.61 × 3,407.79
  4. Step 4: Simplify right side
    10,427.46x = 53,310,137.72
  5. Step 5: Solve for x
    x = 53,310,137.72/10,427.46
  6. Step 6: Final answer
    x = 5,112.48

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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.