Home / 13,791.45-19,028.88-8,125.77

Finding the Fourth Proportional to 13,791.45, 19,028.88 and 8,125.77

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Solution

The fourth proportional to 13,791.45, 19,028.88 and 8,125.77 is: 11,211.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.45 : 19,028.88 = 8,125.77 : x
  2. Step 2: Convert to fraction form
    13,791.45/19,028.88 = 8,125.77/x
  3. Step 3: Cross multiply
    13,791.45x = 19,028.88 × 8,125.77
  4. Step 4: Simplify right side
    13,791.45x = 154,624,302.24
  5. Step 5: Solve for x
    x = 154,624,302.24/13,791.45
  6. Step 6: Final answer
    x = 11,211.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.