Home / 13,755.03-20,635.19-5,857.40

Finding the Fourth Proportional to 13,755.03, 20,635.19 and 5,857.40

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Solution

The fourth proportional to 13,755.03, 20,635.19 and 5,857.40 is: 8,787.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.03 : 20,635.19 = 5,857.40 : x
  2. Step 2: Convert to fraction form
    13,755.03/20,635.19 = 5,857.40/x
  3. Step 3: Cross multiply
    13,755.03x = 20,635.19 × 5,857.40
  4. Step 4: Simplify right side
    13,755.03x = 120,868,561.91
  5. Step 5: Solve for x
    x = 120,868,561.91/13,755.03
  6. Step 6: Final answer
    x = 8,787.23

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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.