Home / 12,217.20-18,322.08-6,669.48

Finding the Fourth Proportional to 12,217.20, 18,322.08 and 6,669.48

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Solution

The fourth proportional to 12,217.20, 18,322.08 and 6,669.48 is: 10,002.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.20 : 18,322.08 = 6,669.48 : x
  2. Step 2: Convert to fraction form
    12,217.20/18,322.08 = 6,669.48/x
  3. Step 3: Cross multiply
    12,217.20x = 18,322.08 × 6,669.48
  4. Step 4: Simplify right side
    12,217.20x = 122,198,746.12
  5. Step 5: Solve for x
    x = 122,198,746.12/12,217.20
  6. Step 6: Final answer
    x = 10,002.19

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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.