Home / 13,618.37-20,425.12-3,623.17

Finding the Fourth Proportional to 13,618.37, 20,425.12 and 3,623.17

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Solution

The fourth proportional to 13,618.37, 20,425.12 and 3,623.17 is: 5,434.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618.37 : 20,425.12 = 3,623.17 : x
  2. Step 2: Convert to fraction form
    13,618.37/20,425.12 = 3,623.17/x
  3. Step 3: Cross multiply
    13,618.37x = 20,425.12 × 3,623.17
  4. Step 4: Simplify right side
    13,618.37x = 74,003,663.91
  5. Step 5: Solve for x
    x = 74,003,663.91/13,618.37
  6. Step 6: Final answer
    x = 5,434.11

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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.