Home / 8,634.42-12,952.35-3,087.54

Finding the Fourth Proportional to 8,634.42, 12,952.35 and 3,087.54

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Solution

The fourth proportional to 8,634.42, 12,952.35 and 3,087.54 is: 4,631.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634.42 : 12,952.35 = 3,087.54 : x
  2. Step 2: Convert to fraction form
    8,634.42/12,952.35 = 3,087.54/x
  3. Step 3: Cross multiply
    8,634.42x = 12,952.35 × 3,087.54
  4. Step 4: Simplify right side
    8,634.42x = 39,990,898.72
  5. Step 5: Solve for x
    x = 39,990,898.72/8,634.42
  6. Step 6: Final answer
    x = 4,631.57

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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.