Home / 19,857.87-27,403.94-11,360.09

Finding the Fourth Proportional to 19,857.87, 27,403.94 and 11,360.09

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Solution

The fourth proportional to 19,857.87, 27,403.94 and 11,360.09 is: 15,676.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.87 : 27,403.94 = 11,360.09 : x
  2. Step 2: Convert to fraction form
    19,857.87/27,403.94 = 11,360.09/x
  3. Step 3: Cross multiply
    19,857.87x = 27,403.94 × 11,360.09
  4. Step 4: Simplify right side
    19,857.87x = 311,311,030.93
  5. Step 5: Solve for x
    x = 311,311,030.93/19,857.87
  6. Step 6: Final answer
    x = 15,676.96

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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.