Home / 13,705.72-20,559.19-3,844.78

Finding the Fourth Proportional to 13,705.72, 20,559.19 and 3,844.78

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Solution

The fourth proportional to 13,705.72, 20,559.19 and 3,844.78 is: 5,767.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705.72 : 20,559.19 = 3,844.78 : x
  2. Step 2: Convert to fraction form
    13,705.72/20,559.19 = 3,844.78/x
  3. Step 3: Cross multiply
    13,705.72x = 20,559.19 × 3,844.78
  4. Step 4: Simplify right side
    13,705.72x = 79,045,661.67
  5. Step 5: Solve for x
    x = 79,045,661.67/13,705.72
  6. Step 6: Final answer
    x = 5,767.35

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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.