Home / 26,128.89-39,192.03-6,406.38

Finding the Fourth Proportional to 26,128.89, 39,192.03 and 6,406.38

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Solution

The fourth proportional to 26,128.89, 39,192.03 and 6,406.38 is: 9,609.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,128.89 : 39,192.03 = 6,406.38 : x
  2. Step 2: Convert to fraction form
    26,128.89/39,192.03 = 6,406.38/x
  3. Step 3: Cross multiply
    26,128.89x = 39,192.03 × 6,406.38
  4. Step 4: Simplify right side
    26,128.89x = 251,079,037.15
  5. Step 5: Solve for x
    x = 251,079,037.15/26,128.89
  6. Step 6: Final answer
    x = 9,609.25

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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.