Home / 13,222.60-19,833.88-5,425.92

Finding the Fourth Proportional to 13,222.60, 19,833.88 and 5,425.92

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Solution

The fourth proportional to 13,222.60, 19,833.88 and 5,425.92 is: 8,138.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.60 : 19,833.88 = 5,425.92 : x
  2. Step 2: Convert to fraction form
    13,222.60/19,833.88 = 5,425.92/x
  3. Step 3: Cross multiply
    13,222.60x = 19,833.88 × 5,425.92
  4. Step 4: Simplify right side
    13,222.60x = 107,617,046.17
  5. Step 5: Solve for x
    x = 107,617,046.17/13,222.60
  6. Step 6: Final answer
    x = 8,138.87

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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.