Home / 12,625.12-18,936.80-5,227.68

Finding the Fourth Proportional to 12,625.12, 18,936.80 and 5,227.68

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Solution

The fourth proportional to 12,625.12, 18,936.80 and 5,227.68 is: 7,841.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.12 : 18,936.80 = 5,227.68 : x
  2. Step 2: Convert to fraction form
    12,625.12/18,936.80 = 5,227.68/x
  3. Step 3: Cross multiply
    12,625.12x = 18,936.80 × 5,227.68
  4. Step 4: Simplify right side
    12,625.12x = 98,995,530.62
  5. Step 5: Solve for x
    x = 98,995,530.62/12,625.12
  6. Step 6: Final answer
    x = 7,841.16

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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.