Home / 11,919.22-16,448.02-6,613.72

Finding the Fourth Proportional to 11,919.22, 16,448.02 and 6,613.72

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Solution

The fourth proportional to 11,919.22, 16,448.02 and 6,613.72 is: 9,126.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.22 : 16,448.02 = 6,613.72 : x
  2. Step 2: Convert to fraction form
    11,919.22/16,448.02 = 6,613.72/x
  3. Step 3: Cross multiply
    11,919.22x = 16,448.02 × 6,613.72
  4. Step 4: Simplify right side
    11,919.22x = 108,782,598.83
  5. Step 5: Solve for x
    x = 108,782,598.83/11,919.22
  6. Step 6: Final answer
    x = 9,126.65

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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.