Home / 19,645.94-27,104.70-11,147.12

Finding the Fourth Proportional to 19,645.94, 27,104.70 and 11,147.12

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Solution

The fourth proportional to 19,645.94, 27,104.70 and 11,147.12 is: 15,379.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,645.94 : 27,104.70 = 11,147.12 : x
  2. Step 2: Convert to fraction form
    19,645.94/27,104.70 = 11,147.12/x
  3. Step 3: Cross multiply
    19,645.94x = 27,104.70 × 11,147.12
  4. Step 4: Simplify right side
    19,645.94x = 302,139,343.46
  5. Step 5: Solve for x
    x = 302,139,343.46/19,645.94
  6. Step 6: Final answer
    x = 15,379.23

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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.