Home / 19,636.68-27,099.07-11,139.37

Finding the Fourth Proportional to 19,636.68, 27,099.07 and 11,139.37

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Solution

The fourth proportional to 19,636.68, 27,099.07 and 11,139.37 is: 15,372.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,636.68 : 27,099.07 = 11,139.37 : x
  2. Step 2: Convert to fraction form
    19,636.68/27,099.07 = 11,139.37/x
  3. Step 3: Cross multiply
    19,636.68x = 27,099.07 × 11,139.37
  4. Step 4: Simplify right side
    19,636.68x = 301,866,686.88
  5. Step 5: Solve for x
    x = 301,866,686.88/19,636.68
  6. Step 6: Final answer
    x = 15,372.59

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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.