Home / 13,765.34-20,643.57-3,901.97

Finding the Fourth Proportional to 13,765.34, 20,643.57 and 3,901.97

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Solution

The fourth proportional to 13,765.34, 20,643.57 and 3,901.97 is: 5,851.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.34 : 20,643.57 = 3,901.97 : x
  2. Step 2: Convert to fraction form
    13,765.34/20,643.57 = 3,901.97/x
  3. Step 3: Cross multiply
    13,765.34x = 20,643.57 × 3,901.97
  4. Step 4: Simplify right side
    13,765.34x = 80,550,642.44
  5. Step 5: Solve for x
    x = 80,550,642.44/13,765.34
  6. Step 6: Final answer
    x = 5,851.70

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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.