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Finding the Fourth Proportional to 12,490.36, 17,236.70 and 6,901.36

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Solution

The fourth proportional to 12,490.36, 17,236.70 and 6,901.36 is: 9,523.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490.36 : 17,236.70 = 6,901.36 : x
  2. Step 2: Convert to fraction form
    12,490.36/17,236.70 = 6,901.36/x
  3. Step 3: Cross multiply
    12,490.36x = 17,236.70 × 6,901.36
  4. Step 4: Simplify right side
    12,490.36x = 118,956,594.31
  5. Step 5: Solve for x
    x = 118,956,594.31/12,490.36
  6. Step 6: Final answer
    x = 9,523.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.