Home / 12,217.92-16,860.72-6,628.92

Finding the Fourth Proportional to 12,217.92, 16,860.72 and 6,628.92

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Solution

The fourth proportional to 12,217.92, 16,860.72 and 6,628.92 is: 9,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.92 : 16,860.72 = 6,628.92 : x
  2. Step 2: Convert to fraction form
    12,217.92/16,860.72 = 6,628.92/x
  3. Step 3: Cross multiply
    12,217.92x = 16,860.72 × 6,628.92
  4. Step 4: Simplify right side
    12,217.92x = 111,768,364.02
  5. Step 5: Solve for x
    x = 111,768,364.02/12,217.92
  6. Step 6: Final answer
    x = 9,147.90

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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.