Home / 12,789.70-19,184.28-4,998.49

Finding the Fourth Proportional to 12,789.70, 19,184.28 and 4,998.49

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Solution

The fourth proportional to 12,789.70, 19,184.28 and 4,998.49 is: 7,497.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789.70 : 19,184.28 = 4,998.49 : x
  2. Step 2: Convert to fraction form
    12,789.70/19,184.28 = 4,998.49/x
  3. Step 3: Cross multiply
    12,789.70x = 19,184.28 × 4,998.49
  4. Step 4: Simplify right side
    12,789.70x = 95,892,431.74
  5. Step 5: Solve for x
    x = 95,892,431.74/12,789.70
  6. Step 6: Final answer
    x = 7,497.63

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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.