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Finding the Fourth Proportional to 6,486.94, 8,887.14 and 6,243.98

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Solution

The fourth proportional to 6,486.94, 8,887.14 and 6,243.98 is: 8,554.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,486.94 : 8,887.14 = 6,243.98 : x
  2. Step 2: Convert to fraction form
    6,486.94/8,887.14 = 6,243.98/x
  3. Step 3: Cross multiply
    6,486.94x = 8,887.14 × 6,243.98
  4. Step 4: Simplify right side
    6,486.94x = 55,491,079.98
  5. Step 5: Solve for x
    x = 55,491,079.98/6,486.94
  6. Step 6: Final answer
    x = 8,554.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.