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Finding the Fourth Proportional to 7,652.70, 11,469.47 and 4,142.70

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Solution

The fourth proportional to 7,652.70, 11,469.47 and 4,142.70 is: 6,208.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,652.70 : 11,469.47 = 4,142.70 : x
  2. Step 2: Convert to fraction form
    7,652.70/11,469.47 = 4,142.70/x
  3. Step 3: Cross multiply
    7,652.70x = 11,469.47 × 4,142.70
  4. Step 4: Simplify right side
    7,652.70x = 47,514,552.66
  5. Step 5: Solve for x
    x = 47,514,552.66/7,652.70
  6. Step 6: Final answer
    x = 6,208.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.