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Finding the Fourth Proportional to 12,636.36, 17,442 and 7,332.48

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Solution

The fourth proportional to 12,636.36, 17,442 and 7,332.48 is: 10,121.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636.36 : 17,442 = 7,332.48 : x
  2. Step 2: Convert to fraction form
    12,636.36/17,442 = 7,332.48/x
  3. Step 3: Cross multiply
    12,636.36x = 17,442 × 7,332.48
  4. Step 4: Simplify right side
    12,636.36x = 127,893,116.16
  5. Step 5: Solve for x
    x = 127,893,116.16/12,636.36
  6. Step 6: Final answer
    x = 10,121.04

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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.