Home / 18,661.35-27,999.60-7,565.16

Finding the Fourth Proportional to 18,661.35, 27,999.60 and 7,565.16

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Solution

The fourth proportional to 18,661.35, 27,999.60 and 7,565.16 is: 11,350.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661.35 : 27,999.60 = 7,565.16 : x
  2. Step 2: Convert to fraction form
    18,661.35/27,999.60 = 7,565.16/x
  3. Step 3: Cross multiply
    18,661.35x = 27,999.60 × 7,565.16
  4. Step 4: Simplify right side
    18,661.35x = 211,821,453.94
  5. Step 5: Solve for x
    x = 211,821,453.94/18,661.35
  6. Step 6: Final answer
    x = 11,350.81

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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.