Home / 11,309.85-16,940.07-5,454.16

Finding the Fourth Proportional to 11,309.85, 16,940.07 and 5,454.16

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Solution

The fourth proportional to 11,309.85, 16,940.07 and 5,454.16 is: 8,169.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,309.85 : 16,940.07 = 5,454.16 : x
  2. Step 2: Convert to fraction form
    11,309.85/16,940.07 = 5,454.16/x
  3. Step 3: Cross multiply
    11,309.85x = 16,940.07 × 5,454.16
  4. Step 4: Simplify right side
    11,309.85x = 92,393,809.84
  5. Step 5: Solve for x
    x = 92,393,809.84/11,309.85
  6. Step 6: Final answer
    x = 8,169.32

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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.