Home / 12,619.49-18,933.17-5,227.43

Finding the Fourth Proportional to 12,619.49, 18,933.17 and 5,227.43

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Solution

The fourth proportional to 12,619.49, 18,933.17 and 5,227.43 is: 7,842.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619.49 : 18,933.17 = 5,227.43 : x
  2. Step 2: Convert to fraction form
    12,619.49/18,933.17 = 5,227.43/x
  3. Step 3: Cross multiply
    12,619.49x = 18,933.17 × 5,227.43
  4. Step 4: Simplify right side
    12,619.49x = 98,971,700.05
  5. Step 5: Solve for x
    x = 98,971,700.05/12,619.49
  6. Step 6: Final answer
    x = 7,842.77

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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.