Home / 17,931.18-26,891.91-7,540.50

Finding the Fourth Proportional to 17,931.18, 26,891.91 and 7,540.50

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Solution

The fourth proportional to 17,931.18, 26,891.91 and 7,540.50 is: 11,308.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,931.18 : 26,891.91 = 7,540.50 : x
  2. Step 2: Convert to fraction form
    17,931.18/26,891.91 = 7,540.50/x
  3. Step 3: Cross multiply
    17,931.18x = 26,891.91 × 7,540.50
  4. Step 4: Simplify right side
    17,931.18x = 202,778,447.36
  5. Step 5: Solve for x
    x = 202,778,447.36/17,931.18
  6. Step 6: Final answer
    x = 11,308.71

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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.