Home / 18,661.68-27,995.04-6,177.60

Finding the Fourth Proportional to 18,661.68, 27,995.04 and 6,177.60

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Solution

The fourth proportional to 18,661.68, 27,995.04 and 6,177.60 is: 9,267.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661.68 : 27,995.04 = 6,177.60 : x
  2. Step 2: Convert to fraction form
    18,661.68/27,995.04 = 6,177.60/x
  3. Step 3: Cross multiply
    18,661.68x = 27,995.04 × 6,177.60
  4. Step 4: Simplify right side
    18,661.68x = 172,942,159.10
  5. Step 5: Solve for x
    x = 172,942,159.10/18,661.68
  6. Step 6: Final answer
    x = 9,267.23

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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.