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Finding the Fourth Proportional to 6,143.76, 8,473.82 and 4,814.82

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Solution

The fourth proportional to 6,143.76, 8,473.82 and 4,814.82 is: 6,640.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.76 : 8,473.82 = 4,814.82 : x
  2. Step 2: Convert to fraction form
    6,143.76/8,473.82 = 4,814.82/x
  3. Step 3: Cross multiply
    6,143.76x = 8,473.82 × 4,814.82
  4. Step 4: Simplify right side
    6,143.76x = 40,799,893.94
  5. Step 5: Solve for x
    x = 40,799,893.94/6,143.76
  6. Step 6: Final answer
    x = 6,640.87

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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.