Home / 11,455.64-17,179.38-5,210.42

Finding the Fourth Proportional to 11,455.64, 17,179.38 and 5,210.42

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Solution

The fourth proportional to 11,455.64, 17,179.38 and 5,210.42 is: 7,813.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.64 : 17,179.38 = 5,210.42 : x
  2. Step 2: Convert to fraction form
    11,455.64/17,179.38 = 5,210.42/x
  3. Step 3: Cross multiply
    11,455.64x = 17,179.38 × 5,210.42
  4. Step 4: Simplify right side
    11,455.64x = 89,511,785.14
  5. Step 5: Solve for x
    x = 89,511,785.14/11,455.64
  6. Step 6: Final answer
    x = 7,813.77

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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.