Home / 12,646.38-18,966.86-3,759.56

Finding the Fourth Proportional to 12,646.38, 18,966.86 and 3,759.56

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Solution

The fourth proportional to 12,646.38, 18,966.86 and 3,759.56 is: 5,638.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.38 : 18,966.86 = 3,759.56 : x
  2. Step 2: Convert to fraction form
    12,646.38/18,966.86 = 3,759.56/x
  3. Step 3: Cross multiply
    12,646.38x = 18,966.86 × 3,759.56
  4. Step 4: Simplify right side
    12,646.38x = 71,307,126.46
  5. Step 5: Solve for x
    x = 71,307,126.46/12,646.38
  6. Step 6: Final answer
    x = 5,638.54

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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.