Home / 12,824.12-19,257.45-7,924.90

Finding the Fourth Proportional to 12,824.12, 19,257.45 and 7,924.90

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Solution

The fourth proportional to 12,824.12, 19,257.45 and 7,924.90 is: 11,900.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,824.12 : 19,257.45 = 7,924.90 : x
  2. Step 2: Convert to fraction form
    12,824.12/19,257.45 = 7,924.90/x
  3. Step 3: Cross multiply
    12,824.12x = 19,257.45 × 7,924.90
  4. Step 4: Simplify right side
    12,824.12x = 152,613,359.12
  5. Step 5: Solve for x
    x = 152,613,359.12/12,824.12
  6. Step 6: Final answer
    x = 11,900.49

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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.