Home / 12,217.32-16,859.94-6,628.36

Finding the Fourth Proportional to 12,217.32, 16,859.94 and 6,628.36

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Solution

The fourth proportional to 12,217.32, 16,859.94 and 6,628.36 is: 9,147.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.32 : 16,859.94 = 6,628.36 : x
  2. Step 2: Convert to fraction form
    12,217.32/16,859.94 = 6,628.36/x
  3. Step 3: Cross multiply
    12,217.32x = 16,859.94 × 6,628.36
  4. Step 4: Simplify right side
    12,217.32x = 111,753,751.90
  5. Step 5: Solve for x
    x = 111,753,751.90/12,217.32
  6. Step 6: Final answer
    x = 9,147.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.