Home / 8,503.43-12,752.82-5,378.73

Finding the Fourth Proportional to 8,503.43, 12,752.82 and 5,378.73

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Solution

The fourth proportional to 8,503.43, 12,752.82 and 5,378.73 is: 8,066.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503.43 : 12,752.82 = 5,378.73 : x
  2. Step 2: Convert to fraction form
    8,503.43/12,752.82 = 5,378.73/x
  3. Step 3: Cross multiply
    8,503.43x = 12,752.82 × 5,378.73
  4. Step 4: Simplify right side
    8,503.43x = 68,593,975.52
  5. Step 5: Solve for x
    x = 68,593,975.52/8,503.43
  6. Step 6: Final answer
    x = 8,066.63

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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.