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Finding the Fourth Proportional to 6,905.49, 10,359.51 and 6,279.49

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Solution

The fourth proportional to 6,905.49, 10,359.51 and 6,279.49 is: 9,420.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.49 : 10,359.51 = 6,279.49 : x
  2. Step 2: Convert to fraction form
    6,905.49/10,359.51 = 6,279.49/x
  3. Step 3: Cross multiply
    6,905.49x = 10,359.51 × 6,279.49
  4. Step 4: Simplify right side
    6,905.49x = 65,052,439.45
  5. Step 5: Solve for x
    x = 65,052,439.45/6,905.49
  6. Step 6: Final answer
    x = 9,420.39

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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.