Home / 16,111.80-22,192.70-11,387.88

Finding the Fourth Proportional to 16,111.80, 22,192.70 and 11,387.88

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Solution

The fourth proportional to 16,111.80, 22,192.70 and 11,387.88 is: 15,685.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,111.80 : 22,192.70 = 11,387.88 : x
  2. Step 2: Convert to fraction form
    16,111.80/22,192.70 = 11,387.88/x
  3. Step 3: Cross multiply
    16,111.80x = 22,192.70 × 11,387.88
  4. Step 4: Simplify right side
    16,111.80x = 252,727,804.48
  5. Step 5: Solve for x
    x = 252,727,804.48/16,111.80
  6. Step 6: Final answer
    x = 15,685.88

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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.