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Finding the Fourth Proportional to 6,977.12, 10,512.23 and 6,310.79

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Solution

The fourth proportional to 6,977.12, 10,512.23 and 6,310.79 is: 9,508.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,977.12 : 10,512.23 = 6,310.79 : x
  2. Step 2: Convert to fraction form
    6,977.12/10,512.23 = 6,310.79/x
  3. Step 3: Cross multiply
    6,977.12x = 10,512.23 × 6,310.79
  4. Step 4: Simplify right side
    6,977.12x = 66,340,490.41
  5. Step 5: Solve for x
    x = 66,340,490.41/6,977.12
  6. Step 6: Final answer
    x = 9,508.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.