Home / 10,137.26-13,972.68-6,778.85

Finding the Fourth Proportional to 10,137.26, 13,972.68 and 6,778.85

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Solution

The fourth proportional to 10,137.26, 13,972.68 and 6,778.85 is: 9,343.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,137.26 : 13,972.68 = 6,778.85 : x
  2. Step 2: Convert to fraction form
    10,137.26/13,972.68 = 6,778.85/x
  3. Step 3: Cross multiply
    10,137.26x = 13,972.68 × 6,778.85
  4. Step 4: Simplify right side
    10,137.26x = 94,718,631.95
  5. Step 5: Solve for x
    x = 94,718,631.95/10,137.26
  6. Step 6: Final answer
    x = 9,343.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.