Home / 11,721.80-16,169.27-8,741.00

Finding the Fourth Proportional to 11,721.80, 16,169.27 and 8,741.00

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Solution

The fourth proportional to 11,721.80, 16,169.27 and 8,741.00 is: 12,057.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.80 : 16,169.27 = 8,741.00 : x
  2. Step 2: Convert to fraction form
    11,721.80/16,169.27 = 8,741.00/x
  3. Step 3: Cross multiply
    11,721.80x = 16,169.27 × 8,741.00
  4. Step 4: Simplify right side
    11,721.80x = 141,335,464.52
  5. Step 5: Solve for x
    x = 141,335,464.52/11,721.80
  6. Step 6: Final answer
    x = 12,057.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.