Home / 14,358.06-21,537.45-3,969.78

Finding the Fourth Proportional to 14,358.06, 21,537.45 and 3,969.78

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Solution

The fourth proportional to 14,358.06, 21,537.45 and 3,969.78 is: 5,954.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,358.06 : 21,537.45 = 3,969.78 : x
  2. Step 2: Convert to fraction form
    14,358.06/21,537.45 = 3,969.78/x
  3. Step 3: Cross multiply
    14,358.06x = 21,537.45 × 3,969.78
  4. Step 4: Simplify right side
    14,358.06x = 85,498,938.26
  5. Step 5: Solve for x
    x = 85,498,938.26/14,358.06
  6. Step 6: Final answer
    x = 5,954.77

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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.