Home / 26,128.35-39,163.32-11,315.07

Finding the Fourth Proportional to 26,128.35, 39,163.32 and 11,315.07

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Solution

The fourth proportional to 26,128.35, 39,163.32 and 11,315.07 is: 16,959.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,128.35 : 39,163.32 = 11,315.07 : x
  2. Step 2: Convert to fraction form
    26,128.35/39,163.32 = 11,315.07/x
  3. Step 3: Cross multiply
    26,128.35x = 39,163.32 × 11,315.07
  4. Step 4: Simplify right side
    26,128.35x = 443,135,707.23
  5. Step 5: Solve for x
    x = 443,135,707.23/26,128.35
  6. Step 6: Final answer
    x = 16,959.96

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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.