Home / 18,727.88-28,091.80-7,632.16

Finding the Fourth Proportional to 18,727.88, 28,091.80 and 7,632.16

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Solution

The fourth proportional to 18,727.88, 28,091.80 and 7,632.16 is: 11,448.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727.88 : 28,091.80 = 7,632.16 : x
  2. Step 2: Convert to fraction form
    18,727.88/28,091.80 = 7,632.16/x
  3. Step 3: Cross multiply
    18,727.88x = 28,091.80 × 7,632.16
  4. Step 4: Simplify right side
    18,727.88x = 214,401,112.29
  5. Step 5: Solve for x
    x = 214,401,112.29/18,727.88
  6. Step 6: Final answer
    x = 11,448.23

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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.