Home / 10,785.22-16,159.20-5,231.05

Finding the Fourth Proportional to 10,785.22, 16,159.20 and 5,231.05

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Solution

The fourth proportional to 10,785.22, 16,159.20 and 5,231.05 is: 7,837.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785.22 : 16,159.20 = 5,231.05 : x
  2. Step 2: Convert to fraction form
    10,785.22/16,159.20 = 5,231.05/x
  3. Step 3: Cross multiply
    10,785.22x = 16,159.20 × 5,231.05
  4. Step 4: Simplify right side
    10,785.22x = 84,529,583.16
  5. Step 5: Solve for x
    x = 84,529,583.16/10,785.22
  6. Step 6: Final answer
    x = 7,837.54

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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.