Home / 19,918.05-27,483.73-11,418.54

Finding the Fourth Proportional to 19,918.05, 27,483.73 and 11,418.54

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Solution

The fourth proportional to 19,918.05, 27,483.73 and 11,418.54 is: 15,755.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.05 : 27,483.73 = 11,418.54 : x
  2. Step 2: Convert to fraction form
    19,918.05/27,483.73 = 11,418.54/x
  3. Step 3: Cross multiply
    19,918.05x = 27,483.73 × 11,418.54
  4. Step 4: Simplify right side
    19,918.05x = 313,824,070.35
  5. Step 5: Solve for x
    x = 313,824,070.35/19,918.05
  6. Step 6: Final answer
    x = 15,755.76

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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.