Home / 13,231.32-19,844.52-3,869.28

Finding the Fourth Proportional to 13,231.32, 19,844.52 and 3,869.28

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Solution

The fourth proportional to 13,231.32, 19,844.52 and 3,869.28 is: 5,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.32 : 19,844.52 = 3,869.28 : x
  2. Step 2: Convert to fraction form
    13,231.32/19,844.52 = 3,869.28/x
  3. Step 3: Cross multiply
    13,231.32x = 19,844.52 × 3,869.28
  4. Step 4: Simplify right side
    13,231.32x = 76,784,004.35
  5. Step 5: Solve for x
    x = 76,784,004.35/13,231.32
  6. Step 6: Final answer
    x = 5,803.20

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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.