Home / 13,217.49-19,824.80-5,426.33

Finding the Fourth Proportional to 13,217.49, 19,824.80 and 5,426.33

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Solution

The fourth proportional to 13,217.49, 19,824.80 and 5,426.33 is: 8,138.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.49 : 19,824.80 = 5,426.33 : x
  2. Step 2: Convert to fraction form
    13,217.49/19,824.80 = 5,426.33/x
  3. Step 3: Cross multiply
    13,217.49x = 19,824.80 × 5,426.33
  4. Step 4: Simplify right side
    13,217.49x = 107,575,780.73
  5. Step 5: Solve for x
    x = 107,575,780.73/13,217.49
  6. Step 6: Final answer
    x = 8,138.90

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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.