Home / 19,805.72-27,329.28-11,845.04

Finding the Fourth Proportional to 19,805.72, 27,329.28 and 11,845.04

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Solution

The fourth proportional to 19,805.72, 27,329.28 and 11,845.04 is: 16,344.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.72 : 27,329.28 = 11,845.04 : x
  2. Step 2: Convert to fraction form
    19,805.72/27,329.28 = 11,845.04/x
  3. Step 3: Cross multiply
    19,805.72x = 27,329.28 × 11,845.04
  4. Step 4: Simplify right side
    19,805.72x = 323,716,414.77
  5. Step 5: Solve for x
    x = 323,716,414.77/19,805.72
  6. Step 6: Final answer
    x = 16,344.59

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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.