Home / 19,812.69-27,341.82-11,855.25

Finding the Fourth Proportional to 19,812.69, 27,341.82 and 11,855.25

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Solution

The fourth proportional to 19,812.69, 27,341.82 and 11,855.25 is: 16,360.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.69 : 27,341.82 = 11,855.25 : x
  2. Step 2: Convert to fraction form
    19,812.69/27,341.82 = 11,855.25/x
  3. Step 3: Cross multiply
    19,812.69x = 27,341.82 × 11,855.25
  4. Step 4: Simplify right side
    19,812.69x = 324,144,111.56
  5. Step 5: Solve for x
    x = 324,144,111.56/19,812.69
  6. Step 6: Final answer
    x = 16,360.43

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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.