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Finding the Fourth Proportional to 7,322.65, 10,121.87 and 6,741.39

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Solution

The fourth proportional to 7,322.65, 10,121.87 and 6,741.39 is: 9,318.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.65 : 10,121.87 = 6,741.39 : x
  2. Step 2: Convert to fraction form
    7,322.65/10,121.87 = 6,741.39/x
  3. Step 3: Cross multiply
    7,322.65x = 10,121.87 × 6,741.39
  4. Step 4: Simplify right side
    7,322.65x = 68,235,473.20
  5. Step 5: Solve for x
    x = 68,235,473.20/7,322.65
  6. Step 6: Final answer
    x = 9,318.41

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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.