Home / 12,942-19,318.57-11,104.92

Finding the Fourth Proportional to 12,942, 19,318.57 and 11,104.92

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Solution

The fourth proportional to 12,942, 19,318.57 and 11,104.92 is: 16,576.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942 : 19,318.57 = 11,104.92 : x
  2. Step 2: Convert to fraction form
    12,942/19,318.57 = 11,104.92/x
  3. Step 3: Cross multiply
    12,942x = 19,318.57 × 11,104.92
  4. Step 4: Simplify right side
    12,942x = 214,531,146.60
  5. Step 5: Solve for x
    x = 214,531,146.60/12,942
  6. Step 6: Final answer
    x = 16,576.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.