Home / 19,809.20-27,336.62-10,857.26

Finding the Fourth Proportional to 19,809.20, 27,336.62 and 10,857.26

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Solution

The fourth proportional to 19,809.20, 27,336.62 and 10,857.26 is: 14,982.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.20 : 27,336.62 = 10,857.26 : x
  2. Step 2: Convert to fraction form
    19,809.20/27,336.62 = 10,857.26/x
  3. Step 3: Cross multiply
    19,809.20x = 27,336.62 × 10,857.26
  4. Step 4: Simplify right side
    19,809.20x = 296,800,790.86
  5. Step 5: Solve for x
    x = 296,800,790.86/19,809.20
  6. Step 6: Final answer
    x = 14,982.98

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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.