Home / 18,638.52-27,949.58-9,871.38

Finding the Fourth Proportional to 18,638.52, 27,949.58 and 9,871.38

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Solution

The fourth proportional to 18,638.52, 27,949.58 and 9,871.38 is: 14,802.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.52 : 27,949.58 = 9,871.38 : x
  2. Step 2: Convert to fraction form
    18,638.52/27,949.58 = 9,871.38/x
  3. Step 3: Cross multiply
    18,638.52x = 27,949.58 × 9,871.38
  4. Step 4: Simplify right side
    18,638.52x = 275,900,925.02
  5. Step 5: Solve for x
    x = 275,900,925.02/18,638.52
  6. Step 6: Final answer
    x = 14,802.73

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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.