Home / 13,325.28-19,987.91-3,965.27

Finding the Fourth Proportional to 13,325.28, 19,987.91 and 3,965.27

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Solution

The fourth proportional to 13,325.28, 19,987.91 and 3,965.27 is: 5,947.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.28 : 19,987.91 = 3,965.27 : x
  2. Step 2: Convert to fraction form
    13,325.28/19,987.91 = 3,965.27/x
  3. Step 3: Cross multiply
    13,325.28x = 19,987.91 × 3,965.27
  4. Step 4: Simplify right side
    13,325.28x = 79,257,340.12
  5. Step 5: Solve for x
    x = 79,257,340.12/13,325.28
  6. Step 6: Final answer
    x = 5,947.89

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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.