Home / 11,390.49-17,085.47-3,994.92

Finding the Fourth Proportional to 11,390.49, 17,085.47 and 3,994.92

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Solution

The fourth proportional to 11,390.49, 17,085.47 and 3,994.92 is: 5,992.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.49 : 17,085.47 = 3,994.92 : x
  2. Step 2: Convert to fraction form
    11,390.49/17,085.47 = 3,994.92/x
  3. Step 3: Cross multiply
    11,390.49x = 17,085.47 × 3,994.92
  4. Step 4: Simplify right side
    11,390.49x = 68,255,065.84
  5. Step 5: Solve for x
    x = 68,255,065.84/11,390.49
  6. Step 6: Final answer
    x = 5,992.29

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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.