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Finding the Fourth Proportional to 6,326.36, 9,489.72 and 5,087.87

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Solution

The fourth proportional to 6,326.36, 9,489.72 and 5,087.87 is: 7,631.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,326.36 : 9,489.72 = 5,087.87 : x
  2. Step 2: Convert to fraction form
    6,326.36/9,489.72 = 5,087.87/x
  3. Step 3: Cross multiply
    6,326.36x = 9,489.72 × 5,087.87
  4. Step 4: Simplify right side
    6,326.36x = 48,282,461.70
  5. Step 5: Solve for x
    x = 48,282,461.70/6,326.36
  6. Step 6: Final answer
    x = 7,631.95

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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.