Home / 19,396.09-26,769.64-11,439.19

Finding the Fourth Proportional to 19,396.09, 26,769.64 and 11,439.19

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Solution

The fourth proportional to 19,396.09, 26,769.64 and 11,439.19 is: 15,787.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,396.09 : 26,769.64 = 11,439.19 : x
  2. Step 2: Convert to fraction form
    19,396.09/26,769.64 = 11,439.19/x
  3. Step 3: Cross multiply
    19,396.09x = 26,769.64 × 11,439.19
  4. Step 4: Simplify right side
    19,396.09x = 306,222,835.75
  5. Step 5: Solve for x
    x = 306,222,835.75/19,396.09
  6. Step 6: Final answer
    x = 15,787.87

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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.