Home / 13,222.40-19,828.45-6,644

Finding the Fourth Proportional to 13,222.40, 19,828.45 and 6,644

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Solution

The fourth proportional to 13,222.40, 19,828.45 and 6,644 is: 9,963.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.40 : 19,828.45 = 6,644 : x
  2. Step 2: Convert to fraction form
    13,222.40/19,828.45 = 6,644/x
  3. Step 3: Cross multiply
    13,222.40x = 19,828.45 × 6,644
  4. Step 4: Simplify right side
    13,222.40x = 131,740,221.80
  5. Step 5: Solve for x
    x = 131,740,221.80/13,222.40
  6. Step 6: Final answer
    x = 9,963.41

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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.