Home / 13,239.56-19,858.64-3,378.24

Finding the Fourth Proportional to 13,239.56, 19,858.64 and 3,378.24

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Solution

The fourth proportional to 13,239.56, 19,858.64 and 3,378.24 is: 5,067.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.56 : 19,858.64 = 3,378.24 : x
  2. Step 2: Convert to fraction form
    13,239.56/19,858.64 = 3,378.24/x
  3. Step 3: Cross multiply
    13,239.56x = 19,858.64 × 3,378.24
  4. Step 4: Simplify right side
    13,239.56x = 67,087,251.99
  5. Step 5: Solve for x
    x = 67,087,251.99/13,239.56
  6. Step 6: Final answer
    x = 5,067.18

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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.