Home / 19,196.19-26,490.78-11,640.56

Finding the Fourth Proportional to 19,196.19, 26,490.78 and 11,640.56

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Solution

The fourth proportional to 19,196.19, 26,490.78 and 11,640.56 is: 16,063.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,196.19 : 26,490.78 = 11,640.56 : x
  2. Step 2: Convert to fraction form
    19,196.19/26,490.78 = 11,640.56/x
  3. Step 3: Cross multiply
    19,196.19x = 26,490.78 × 11,640.56
  4. Step 4: Simplify right side
    19,196.19x = 308,367,381.58
  5. Step 5: Solve for x
    x = 308,367,381.58/19,196.19
  6. Step 6: Final answer
    x = 16,063.99

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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.