Home / 13,896.46-19,178.13-9,172.54

Finding the Fourth Proportional to 13,896.46, 19,178.13 and 9,172.54

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Solution

The fourth proportional to 13,896.46, 19,178.13 and 9,172.54 is: 12,658.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,896.46 : 19,178.13 = 9,172.54 : x
  2. Step 2: Convert to fraction form
    13,896.46/19,178.13 = 9,172.54/x
  3. Step 3: Cross multiply
    13,896.46x = 19,178.13 × 9,172.54
  4. Step 4: Simplify right side
    13,896.46x = 175,912,164.55
  5. Step 5: Solve for x
    x = 175,912,164.55/13,896.46
  6. Step 6: Final answer
    x = 12,658.78

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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.