Home / 17,608.86-26,417.88-5,128.60

Finding the Fourth Proportional to 17,608.86, 26,417.88 and 5,128.60

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Solution

The fourth proportional to 17,608.86, 26,417.88 and 5,128.60 is: 7,694.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,608.86 : 26,417.88 = 5,128.60 : x
  2. Step 2: Convert to fraction form
    17,608.86/26,417.88 = 5,128.60/x
  3. Step 3: Cross multiply
    17,608.86x = 26,417.88 × 5,128.60
  4. Step 4: Simplify right side
    17,608.86x = 135,486,739.37
  5. Step 5: Solve for x
    x = 135,486,739.37/17,608.86
  6. Step 6: Final answer
    x = 7,694.24

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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.