Home / 19,490.56-26,896.92-11,107.12

Finding the Fourth Proportional to 19,490.56, 26,896.92 and 11,107.12

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Solution

The fourth proportional to 19,490.56, 26,896.92 and 11,107.12 is: 15,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,490.56 : 26,896.92 = 11,107.12 : x
  2. Step 2: Convert to fraction form
    19,490.56/26,896.92 = 11,107.12/x
  3. Step 3: Cross multiply
    19,490.56x = 26,896.92 × 11,107.12
  4. Step 4: Simplify right side
    19,490.56x = 298,747,318.07
  5. Step 5: Solve for x
    x = 298,747,318.07/19,490.56
  6. Step 6: Final answer
    x = 15,327.80

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1.5x scale

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.