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Finding the Fourth Proportional to 8,077.68, 11,150.72 and 4,719.22

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Solution

The fourth proportional to 8,077.68, 11,150.72 and 4,719.22 is: 6,514.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.68 : 11,150.72 = 4,719.22 : x
  2. Step 2: Convert to fraction form
    8,077.68/11,150.72 = 4,719.22/x
  3. Step 3: Cross multiply
    8,077.68x = 11,150.72 × 4,719.22
  4. Step 4: Simplify right side
    8,077.68x = 52,622,700.84
  5. Step 5: Solve for x
    x = 52,622,700.84/8,077.68
  6. Step 6: Final answer
    x = 6,514.58

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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.