Home / 13,251.99-19,877.97-3,391.28

Finding the Fourth Proportional to 13,251.99, 19,877.97 and 3,391.28

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Solution

The fourth proportional to 13,251.99, 19,877.97 and 3,391.28 is: 5,086.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.99 : 19,877.97 = 3,391.28 : x
  2. Step 2: Convert to fraction form
    13,251.99/19,877.97 = 3,391.28/x
  3. Step 3: Cross multiply
    13,251.99x = 19,877.97 × 3,391.28
  4. Step 4: Simplify right side
    13,251.99x = 67,411,662.71
  5. Step 5: Solve for x
    x = 67,411,662.71/13,251.99
  6. Step 6: Final answer
    x = 5,086.91

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Similar ratio
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1.5x scale

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.