Home / 19,845.11-27,381.98-11,456.75

Finding the Fourth Proportional to 19,845.11, 27,381.98 and 11,456.75

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Solution

The fourth proportional to 19,845.11, 27,381.98 and 11,456.75 is: 15,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,845.11 : 27,381.98 = 11,456.75 : x
  2. Step 2: Convert to fraction form
    19,845.11/27,381.98 = 11,456.75/x
  3. Step 3: Cross multiply
    19,845.11x = 27,381.98 × 11,456.75
  4. Step 4: Simplify right side
    19,845.11x = 313,708,442.08
  5. Step 5: Solve for x
    x = 313,708,442.08/19,845.11
  6. Step 6: Final answer
    x = 15,807.85

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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.