Home / 26,115.89-39,168.82-7,391.40

Finding the Fourth Proportional to 26,115.89, 39,168.82 and 7,391.40

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Solution

The fourth proportional to 26,115.89, 39,168.82 and 7,391.40 is: 11,085.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,115.89 : 39,168.82 = 7,391.40 : x
  2. Step 2: Convert to fraction form
    26,115.89/39,168.82 = 7,391.40/x
  3. Step 3: Cross multiply
    26,115.89x = 39,168.82 × 7,391.40
  4. Step 4: Simplify right side
    26,115.89x = 289,512,397.67
  5. Step 5: Solve for x
    x = 289,512,397.67/26,115.89
  6. Step 6: Final answer
    x = 11,085.68

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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.