Home / 12,839.76-19,260.48-3,954

Finding the Fourth Proportional to 12,839.76, 19,260.48 and 3,954

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Solution

The fourth proportional to 12,839.76, 19,260.48 and 3,954 is: 5,931.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839.76 : 19,260.48 = 3,954 : x
  2. Step 2: Convert to fraction form
    12,839.76/19,260.48 = 3,954/x
  3. Step 3: Cross multiply
    12,839.76x = 19,260.48 × 3,954
  4. Step 4: Simplify right side
    12,839.76x = 76,155,937.92
  5. Step 5: Solve for x
    x = 76,155,937.92/12,839.76
  6. Step 6: Final answer
    x = 5,931.26

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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.