Home / 10,757.82-16,122.15-7,994.91

Finding the Fourth Proportional to 10,757.82, 16,122.15 and 7,994.91

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Solution

The fourth proportional to 10,757.82, 16,122.15 and 7,994.91 is: 11,981.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,757.82 : 16,122.15 = 7,994.91 : x
  2. Step 2: Convert to fraction form
    10,757.82/16,122.15 = 7,994.91/x
  3. Step 3: Cross multiply
    10,757.82x = 16,122.15 × 7,994.91
  4. Step 4: Simplify right side
    10,757.82x = 128,895,138.26
  5. Step 5: Solve for x
    x = 128,895,138.26/10,757.82
  6. Step 6: Final answer
    x = 11,981.53

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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.