Home / 11,146.95-16,720.20-3,355.77

Finding the Fourth Proportional to 11,146.95, 16,720.20 and 3,355.77

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Solution

The fourth proportional to 11,146.95, 16,720.20 and 3,355.77 is: 5,033.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.95 : 16,720.20 = 3,355.77 : x
  2. Step 2: Convert to fraction form
    11,146.95/16,720.20 = 3,355.77/x
  3. Step 3: Cross multiply
    11,146.95x = 16,720.20 × 3,355.77
  4. Step 4: Simplify right side
    11,146.95x = 56,109,145.55
  5. Step 5: Solve for x
    x = 56,109,145.55/11,146.95
  6. Step 6: Final answer
    x = 5,033.59

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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.