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Finding the Fourth Proportional to 7,903.32, 11,855.39 and 6,741.42

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Solution

The fourth proportional to 7,903.32, 11,855.39 and 6,741.42 is: 10,112.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.32 : 11,855.39 = 6,741.42 : x
  2. Step 2: Convert to fraction form
    7,903.32/11,855.39 = 6,741.42/x
  3. Step 3: Cross multiply
    7,903.32x = 11,855.39 × 6,741.42
  4. Step 4: Simplify right side
    7,903.32x = 79,922,129.55
  5. Step 5: Solve for x
    x = 79,922,129.55/7,903.32
  6. Step 6: Final answer
    x = 10,112.48

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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.