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Finding the Fourth Proportional to 8,045, 11,101.20 and 4,507.70

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Solution

The fourth proportional to 8,045, 11,101.20 and 4,507.70 is: 6,220.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,045 : 11,101.20 = 4,507.70 : x
  2. Step 2: Convert to fraction form
    8,045/11,101.20 = 4,507.70/x
  3. Step 3: Cross multiply
    8,045x = 11,101.20 × 4,507.70
  4. Step 4: Simplify right side
    8,045x = 50,040,879.24
  5. Step 5: Solve for x
    x = 50,040,879.24/8,045
  6. Step 6: Final answer
    x = 6,220.12

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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.