Home / 13,261.45-19,889.36-3,898.92

Finding the Fourth Proportional to 13,261.45, 19,889.36 and 3,898.92

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Solution

The fourth proportional to 13,261.45, 19,889.36 and 3,898.92 is: 5,847.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.45 : 19,889.36 = 3,898.92 : x
  2. Step 2: Convert to fraction form
    13,261.45/19,889.36 = 3,898.92/x
  3. Step 3: Cross multiply
    13,261.45x = 19,889.36 × 3,898.92
  4. Step 4: Simplify right side
    13,261.45x = 77,546,924.04
  5. Step 5: Solve for x
    x = 77,546,924.04/13,261.45
  6. Step 6: Final answer
    x = 5,847.55

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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.