Home / 13,930.10-20,896.50-4,069.16

Finding the Fourth Proportional to 13,930.10, 20,896.50 and 4,069.16

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Solution

The fourth proportional to 13,930.10, 20,896.50 and 4,069.16 is: 6,104.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.10 : 20,896.50 = 4,069.16 : x
  2. Step 2: Convert to fraction form
    13,930.10/20,896.50 = 4,069.16/x
  3. Step 3: Cross multiply
    13,930.10x = 20,896.50 × 4,069.16
  4. Step 4: Simplify right side
    13,930.10x = 85,031,201.94
  5. Step 5: Solve for x
    x = 85,031,201.94/13,930.10
  6. Step 6: Final answer
    x = 6,104.13

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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.