Home / 26,511.81-39,767.51-6,521.21

Finding the Fourth Proportional to 26,511.81, 39,767.51 and 6,521.21

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Solution

The fourth proportional to 26,511.81, 39,767.51 and 6,521.21 is: 9,781.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,511.81 : 39,767.51 = 6,521.21 : x
  2. Step 2: Convert to fraction form
    26,511.81/39,767.51 = 6,521.21/x
  3. Step 3: Cross multiply
    26,511.81x = 39,767.51 × 6,521.21
  4. Step 4: Simplify right side
    26,511.81x = 259,332,052.44
  5. Step 5: Solve for x
    x = 259,332,052.44/26,511.81
  6. Step 6: Final answer
    x = 9,781.76

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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.