Home / 13,261.81-19,891.24-3,401.32

Finding the Fourth Proportional to 13,261.81, 19,891.24 and 3,401.32

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Solution

The fourth proportional to 13,261.81, 19,891.24 and 3,401.32 is: 5,101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.81 : 19,891.24 = 3,401.32 : x
  2. Step 2: Convert to fraction form
    13,261.81/19,891.24 = 3,401.32/x
  3. Step 3: Cross multiply
    13,261.81x = 19,891.24 × 3,401.32
  4. Step 4: Simplify right side
    13,261.81x = 67,656,472.44
  5. Step 5: Solve for x
    x = 67,656,472.44/13,261.81
  6. Step 6: Final answer
    x = 5,101.60

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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.