Home / 11,390.28-17,085.53-3,994.91

Finding the Fourth Proportional to 11,390.28, 17,085.53 and 3,994.91

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Solution

The fourth proportional to 11,390.28, 17,085.53 and 3,994.91 is: 5,992.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.28 : 17,085.53 = 3,994.91 : x
  2. Step 2: Convert to fraction form
    11,390.28/17,085.53 = 3,994.91/x
  3. Step 3: Cross multiply
    11,390.28x = 17,085.53 × 3,994.91
  4. Step 4: Simplify right side
    11,390.28x = 68,255,213.73
  5. Step 5: Solve for x
    x = 68,255,213.73/11,390.28
  6. Step 6: Final answer
    x = 5,992.41

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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.