Home / 12,208.82-18,313.22-5,631.41

Finding the Fourth Proportional to 12,208.82, 18,313.22 and 5,631.41

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Solution

The fourth proportional to 12,208.82, 18,313.22 and 5,631.41 is: 8,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.82 : 18,313.22 = 5,631.41 : x
  2. Step 2: Convert to fraction form
    12,208.82/18,313.22 = 5,631.41/x
  3. Step 3: Cross multiply
    12,208.82x = 18,313.22 × 5,631.41
  4. Step 4: Simplify right side
    12,208.82x = 103,129,130.52
  5. Step 5: Solve for x
    x = 103,129,130.52/12,208.82
  6. Step 6: Final answer
    x = 8,447.10

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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.