Home / 12,364.68-18,541.26-7,172.04

Finding the Fourth Proportional to 12,364.68, 18,541.26 and 7,172.04

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Solution

The fourth proportional to 12,364.68, 18,541.26 and 7,172.04 is: 10,754.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,364.68 : 18,541.26 = 7,172.04 : x
  2. Step 2: Convert to fraction form
    12,364.68/18,541.26 = 7,172.04/x
  3. Step 3: Cross multiply
    12,364.68x = 18,541.26 × 7,172.04
  4. Step 4: Simplify right side
    12,364.68x = 132,978,658.37
  5. Step 5: Solve for x
    x = 132,978,658.37/12,364.68
  6. Step 6: Final answer
    x = 10,754.72

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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.