Home / 26,112.90-39,169.26-6,391.20

Finding the Fourth Proportional to 26,112.90, 39,169.26 and 6,391.20

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Solution

The fourth proportional to 26,112.90, 39,169.26 and 6,391.20 is: 9,586.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,112.90 : 39,169.26 = 6,391.20 : x
  2. Step 2: Convert to fraction form
    26,112.90/39,169.26 = 6,391.20/x
  3. Step 3: Cross multiply
    26,112.90x = 39,169.26 × 6,391.20
  4. Step 4: Simplify right side
    26,112.90x = 250,338,574.51
  5. Step 5: Solve for x
    x = 250,338,574.51/26,112.90
  6. Step 6: Final answer
    x = 9,586.78

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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.