Home / 26,849.49-40,272.84-8,128.77

Finding the Fourth Proportional to 26,849.49, 40,272.84 and 8,128.77

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Solution

The fourth proportional to 26,849.49, 40,272.84 and 8,128.77 is: 12,192.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,849.49 : 40,272.84 = 8,128.77 : x
  2. Step 2: Convert to fraction form
    26,849.49/40,272.84 = 8,128.77/x
  3. Step 3: Cross multiply
    26,849.49x = 40,272.84 × 8,128.77
  4. Step 4: Simplify right side
    26,849.49x = 327,368,653.61
  5. Step 5: Solve for x
    x = 327,368,653.61/26,849.49
  6. Step 6: Final answer
    x = 12,192.73

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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.