Home / 10,485.92-15,719.52-3,912.41

Finding the Fourth Proportional to 10,485.92, 15,719.52 and 3,912.41

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Solution

The fourth proportional to 10,485.92, 15,719.52 and 3,912.41 is: 5,865.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,485.92 : 15,719.52 = 3,912.41 : x
  2. Step 2: Convert to fraction form
    10,485.92/15,719.52 = 3,912.41/x
  3. Step 3: Cross multiply
    10,485.92x = 15,719.52 × 3,912.41
  4. Step 4: Simplify right side
    10,485.92x = 61,501,207.24
  5. Step 5: Solve for x
    x = 61,501,207.24/10,485.92
  6. Step 6: Final answer
    x = 5,865.12

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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.