Home / 18,105.56-27,135.66-9,785.24

Finding the Fourth Proportional to 18,105.56, 27,135.66 and 9,785.24

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Solution

The fourth proportional to 18,105.56, 27,135.66 and 9,785.24 is: 14,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,105.56 : 27,135.66 = 9,785.24 : x
  2. Step 2: Convert to fraction form
    18,105.56/27,135.66 = 9,785.24/x
  3. Step 3: Cross multiply
    18,105.56x = 27,135.66 × 9,785.24
  4. Step 4: Simplify right side
    18,105.56x = 265,528,945.66
  5. Step 5: Solve for x
    x = 265,528,945.66/18,105.56
  6. Step 6: Final answer
    x = 14,665.60

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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.