Home / 13,490.22-20,233.41-4,255.98

Finding the Fourth Proportional to 13,490.22, 20,233.41 and 4,255.98

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Solution

The fourth proportional to 13,490.22, 20,233.41 and 4,255.98 is: 6,383.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.22 : 20,233.41 = 4,255.98 : x
  2. Step 2: Convert to fraction form
    13,490.22/20,233.41 = 4,255.98/x
  3. Step 3: Cross multiply
    13,490.22x = 20,233.41 × 4,255.98
  4. Step 4: Simplify right side
    13,490.22x = 86,112,988.29
  5. Step 5: Solve for x
    x = 86,112,988.29/13,490.22
  6. Step 6: Final answer
    x = 6,383.36

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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.