Home / 19,845.54-27,386.74-10,893.20

Finding the Fourth Proportional to 19,845.54, 27,386.74 and 10,893.20

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Solution

The fourth proportional to 19,845.54, 27,386.74 and 10,893.20 is: 15,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,845.54 : 27,386.74 = 10,893.20 : x
  2. Step 2: Convert to fraction form
    19,845.54/27,386.74 = 10,893.20/x
  3. Step 3: Cross multiply
    19,845.54x = 27,386.74 × 10,893.20
  4. Step 4: Simplify right side
    19,845.54x = 298,329,112.85
  5. Step 5: Solve for x
    x = 298,329,112.85/19,845.54
  6. Step 6: Final answer
    x = 15,032.55

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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.