Home / 12,634.62-18,936.55-8,937.91

Finding the Fourth Proportional to 12,634.62, 18,936.55 and 8,937.91

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Solution

The fourth proportional to 12,634.62, 18,936.55 and 8,937.91 is: 13,395.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,634.62 : 18,936.55 = 8,937.91 : x
  2. Step 2: Convert to fraction form
    12,634.62/18,936.55 = 8,937.91/x
  3. Step 3: Cross multiply
    12,634.62x = 18,936.55 × 8,937.91
  4. Step 4: Simplify right side
    12,634.62x = 169,253,214.45
  5. Step 5: Solve for x
    x = 169,253,214.45/12,634.62
  6. Step 6: Final answer
    x = 13,395.99

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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.