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Finding the Fourth Proportional to 7,832.81, 10,800.22 and 5,316.55

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Solution

The fourth proportional to 7,832.81, 10,800.22 and 5,316.55 is: 7,330.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,832.81 : 10,800.22 = 5,316.55 : x
  2. Step 2: Convert to fraction form
    7,832.81/10,800.22 = 5,316.55/x
  3. Step 3: Cross multiply
    7,832.81x = 10,800.22 × 5,316.55
  4. Step 4: Simplify right side
    7,832.81x = 57,419,909.64
  5. Step 5: Solve for x
    x = 57,419,909.64/7,832.81
  6. Step 6: Final answer
    x = 7,330.69

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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.