Home / 12,799.18-19,206.98-6,221.78

Finding the Fourth Proportional to 12,799.18, 19,206.98 and 6,221.78

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Solution

The fourth proportional to 12,799.18, 19,206.98 and 6,221.78 is: 9,336.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,799.18 : 19,206.98 = 6,221.78 : x
  2. Step 2: Convert to fraction form
    12,799.18/19,206.98 = 6,221.78/x
  3. Step 3: Cross multiply
    12,799.18x = 19,206.98 × 6,221.78
  4. Step 4: Simplify right side
    12,799.18x = 119,501,476.88
  5. Step 5: Solve for x
    x = 119,501,476.88/12,799.18
  6. Step 6: Final answer
    x = 9,336.65

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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.