Home / 10,293.78-15,440.64-3,719.96

Finding the Fourth Proportional to 10,293.78, 15,440.64 and 3,719.96

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Solution

The fourth proportional to 10,293.78, 15,440.64 and 3,719.96 is: 5,579.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,293.78 : 15,440.64 = 3,719.96 : x
  2. Step 2: Convert to fraction form
    10,293.78/15,440.64 = 3,719.96/x
  3. Step 3: Cross multiply
    10,293.78x = 15,440.64 × 3,719.96
  4. Step 4: Simplify right side
    10,293.78x = 57,438,485.97
  5. Step 5: Solve for x
    x = 57,438,485.97/10,293.78
  6. Step 6: Final answer
    x = 5,579.92

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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.