Home / 13,640.18-20,463.03-4,874.87

Finding the Fourth Proportional to 13,640.18, 20,463.03 and 4,874.87

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Solution

The fourth proportional to 13,640.18, 20,463.03 and 4,874.87 is: 7,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640.18 : 20,463.03 = 4,874.87 : x
  2. Step 2: Convert to fraction form
    13,640.18/20,463.03 = 4,874.87/x
  3. Step 3: Cross multiply
    13,640.18x = 20,463.03 × 4,874.87
  4. Step 4: Simplify right side
    13,640.18x = 99,754,662.21
  5. Step 5: Solve for x
    x = 99,754,662.21/13,640.18
  6. Step 6: Final answer
    x = 7,313.30

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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.