Home / 8,634.49-12,954.45-3,087.70

Finding the Fourth Proportional to 8,634.49, 12,954.45 and 3,087.70

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Solution

The fourth proportional to 8,634.49, 12,954.45 and 3,087.70 is: 4,632.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634.49 : 12,954.45 = 3,087.70 : x
  2. Step 2: Convert to fraction form
    8,634.49/12,954.45 = 3,087.70/x
  3. Step 3: Cross multiply
    8,634.49x = 12,954.45 × 3,087.70
  4. Step 4: Simplify right side
    8,634.49x = 39,999,455.27
  5. Step 5: Solve for x
    x = 39,999,455.27/8,634.49
  6. Step 6: Final answer
    x = 4,632.52

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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.