Home / 19,806.05-27,333.09-11,309.55

Finding the Fourth Proportional to 19,806.05, 27,333.09 and 11,309.55

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Solution

The fourth proportional to 19,806.05, 27,333.09 and 11,309.55 is: 15,607.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,806.05 : 27,333.09 = 11,309.55 : x
  2. Step 2: Convert to fraction form
    19,806.05/27,333.09 = 11,309.55/x
  3. Step 3: Cross multiply
    19,806.05x = 27,333.09 × 11,309.55
  4. Step 4: Simplify right side
    19,806.05x = 309,124,948.01
  5. Step 5: Solve for x
    x = 309,124,948.01/19,806.05
  6. Step 6: Final answer
    x = 15,607.61

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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.