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Finding the Fourth Proportional to 7,115.56, 10,621.98 and 6,796.04

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Solution

The fourth proportional to 7,115.56, 10,621.98 and 6,796.04 is: 10,145.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.56 : 10,621.98 = 6,796.04 : x
  2. Step 2: Convert to fraction form
    7,115.56/10,621.98 = 6,796.04/x
  3. Step 3: Cross multiply
    7,115.56x = 10,621.98 × 6,796.04
  4. Step 4: Simplify right side
    7,115.56x = 72,187,400.96
  5. Step 5: Solve for x
    x = 72,187,400.96/7,115.56
  6. Step 6: Final answer
    x = 10,145.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.