Home / 26,161.90-39,243.44-6,440.65

Finding the Fourth Proportional to 26,161.90, 39,243.44 and 6,440.65

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Solution

The fourth proportional to 26,161.90, 39,243.44 and 6,440.65 is: 9,661.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,161.90 : 39,243.44 = 6,440.65 : x
  2. Step 2: Convert to fraction form
    26,161.90/39,243.44 = 6,440.65/x
  3. Step 3: Cross multiply
    26,161.90x = 39,243.44 × 6,440.65
  4. Step 4: Simplify right side
    26,161.90x = 252,753,261.84
  5. Step 5: Solve for x
    x = 252,753,261.84/26,161.90
  6. Step 6: Final answer
    x = 9,661.12

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1.5x scale

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.