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Finding the Fourth Proportional to 12,693.36, 19,042.36 and 3,927.68

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Solution

The fourth proportional to 12,693.36, 19,042.36 and 3,927.68 is: 5,892.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,693.36 : 19,042.36 = 3,927.68 : x
  2. Step 2: Convert to fraction form
    12,693.36/19,042.36 = 3,927.68/x
  3. Step 3: Cross multiply
    12,693.36x = 19,042.36 × 3,927.68
  4. Step 4: Simplify right side
    12,693.36x = 74,792,296.52
  5. Step 5: Solve for x
    x = 74,792,296.52/12,693.36
  6. Step 6: Final answer
    x = 5,892.24

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1.5x scale

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.