Home / 17,739.78-26,609.70-5,427.78

Finding the Fourth Proportional to 17,739.78, 26,609.70 and 5,427.78

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Solution

The fourth proportional to 17,739.78, 26,609.70 and 5,427.78 is: 8,141.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,739.78 : 26,609.70 = 5,427.78 : x
  2. Step 2: Convert to fraction form
    17,739.78/26,609.70 = 5,427.78/x
  3. Step 3: Cross multiply
    17,739.78x = 26,609.70 × 5,427.78
  4. Step 4: Simplify right side
    17,739.78x = 144,431,597.47
  5. Step 5: Solve for x
    x = 144,431,597.47/17,739.78
  6. Step 6: Final answer
    x = 8,141.68

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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.