Home / 11,120.78-16,681.22-3,329.59

Finding the Fourth Proportional to 11,120.78, 16,681.22 and 3,329.59

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Solution

The fourth proportional to 11,120.78, 16,681.22 and 3,329.59 is: 4,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.78 : 16,681.22 = 3,329.59 : x
  2. Step 2: Convert to fraction form
    11,120.78/16,681.22 = 3,329.59/x
  3. Step 3: Cross multiply
    11,120.78x = 16,681.22 × 3,329.59
  4. Step 4: Simplify right side
    11,120.78x = 55,541,623.30
  5. Step 5: Solve for x
    x = 55,541,623.30/11,120.78
  6. Step 6: Final answer
    x = 4,994.40

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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.