Home / 11,919.18-16,448.22-6,613.68

Finding the Fourth Proportional to 11,919.18, 16,448.22 and 6,613.68

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Solution

The fourth proportional to 11,919.18, 16,448.22 and 6,613.68 is: 9,126.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.18 : 16,448.22 = 6,613.68 : x
  2. Step 2: Convert to fraction form
    11,919.18/16,448.22 = 6,613.68/x
  3. Step 3: Cross multiply
    11,919.18x = 16,448.22 × 6,613.68
  4. Step 4: Simplify right side
    11,919.18x = 108,783,263.65
  5. Step 5: Solve for x
    x = 108,783,263.65/11,919.18
  6. Step 6: Final answer
    x = 9,126.74

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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.