Home / 17,511.30-26,268.60-6,978.78

Finding the Fourth Proportional to 17,511.30, 26,268.60 and 6,978.78

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Solution

The fourth proportional to 17,511.30, 26,268.60 and 6,978.78 is: 10,468.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,511.30 : 26,268.60 = 6,978.78 : x
  2. Step 2: Convert to fraction form
    17,511.30/26,268.60 = 6,978.78/x
  3. Step 3: Cross multiply
    17,511.30x = 26,268.60 × 6,978.78
  4. Step 4: Simplify right side
    17,511.30x = 183,322,780.31
  5. Step 5: Solve for x
    x = 183,322,780.31/17,511.30
  6. Step 6: Final answer
    x = 10,468.83

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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.