Home / 12,929.56-19,391.92-3,567.28

Finding the Fourth Proportional to 12,929.56, 19,391.92 and 3,567.28

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Solution

The fourth proportional to 12,929.56, 19,391.92 and 3,567.28 is: 5,350.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.56 : 19,391.92 = 3,567.28 : x
  2. Step 2: Convert to fraction form
    12,929.56/19,391.92 = 3,567.28/x
  3. Step 3: Cross multiply
    12,929.56x = 19,391.92 × 3,567.28
  4. Step 4: Simplify right side
    12,929.56x = 69,176,408.38
  5. Step 5: Solve for x
    x = 69,176,408.38/12,929.56
  6. Step 6: Final answer
    x = 5,350.25

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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.