Home / 10,638.44-15,957.20-3,618.18

Finding the Fourth Proportional to 10,638.44, 15,957.20 and 3,618.18

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Solution

The fourth proportional to 10,638.44, 15,957.20 and 3,618.18 is: 5,427.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.44 : 15,957.20 = 3,618.18 : x
  2. Step 2: Convert to fraction form
    10,638.44/15,957.20 = 3,618.18/x
  3. Step 3: Cross multiply
    10,638.44x = 15,957.20 × 3,618.18
  4. Step 4: Simplify right side
    10,638.44x = 57,736,021.90
  5. Step 5: Solve for x
    x = 57,736,021.90/10,638.44
  6. Step 6: Final answer
    x = 5,427.11

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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.