Home / 17,120.64-25,655.70-7,763.52

Finding the Fourth Proportional to 17,120.64, 25,655.70 and 7,763.52

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Solution

The fourth proportional to 17,120.64, 25,655.70 and 7,763.52 is: 11,633.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,120.64 : 25,655.70 = 7,763.52 : x
  2. Step 2: Convert to fraction form
    17,120.64/25,655.70 = 7,763.52/x
  3. Step 3: Cross multiply
    17,120.64x = 25,655.70 × 7,763.52
  4. Step 4: Simplify right side
    17,120.64x = 199,178,540.06
  5. Step 5: Solve for x
    x = 199,178,540.06/17,120.64
  6. Step 6: Final answer
    x = 11,633.83

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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.