Home / 26,438.25-39,653.12-7,713.89

Finding the Fourth Proportional to 26,438.25, 39,653.12 and 7,713.89

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Solution

The fourth proportional to 26,438.25, 39,653.12 and 7,713.89 is: 11,569.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,438.25 : 39,653.12 = 7,713.89 : x
  2. Step 2: Convert to fraction form
    26,438.25/39,653.12 = 7,713.89/x
  3. Step 3: Cross multiply
    26,438.25x = 39,653.12 × 7,713.89
  4. Step 4: Simplify right side
    26,438.25x = 305,879,805.84
  5. Step 5: Solve for x
    x = 305,879,805.84/26,438.25
  6. Step 6: Final answer
    x = 11,569.59

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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.