Home / 12,217.08-18,331.99-6,669.39

Finding the Fourth Proportional to 12,217.08, 18,331.99 and 6,669.39

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Solution

The fourth proportional to 12,217.08, 18,331.99 and 6,669.39 is: 10,007.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.08 : 18,331.99 = 6,669.39 : x
  2. Step 2: Convert to fraction form
    12,217.08/18,331.99 = 6,669.39/x
  3. Step 3: Cross multiply
    12,217.08x = 18,331.99 × 6,669.39
  4. Step 4: Simplify right side
    12,217.08x = 122,263,139.74
  5. Step 5: Solve for x
    x = 122,263,139.74/12,217.08
  6. Step 6: Final answer
    x = 10,007.56

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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.