Home / 19,939.87-27,504.85-11,868.10

Finding the Fourth Proportional to 19,939.87, 27,504.85 and 11,868.10

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Solution

The fourth proportional to 19,939.87, 27,504.85 and 11,868.10 is: 16,370.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.87 : 27,504.85 = 11,868.10 : x
  2. Step 2: Convert to fraction form
    19,939.87/27,504.85 = 11,868.10/x
  3. Step 3: Cross multiply
    19,939.87x = 27,504.85 × 11,868.10
  4. Step 4: Simplify right side
    19,939.87x = 326,430,388.82
  5. Step 5: Solve for x
    x = 326,430,388.82/19,939.87
  6. Step 6: Final answer
    x = 16,370.74

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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.