Home / 18,537.89-27,809.54-5,388.55

Finding the Fourth Proportional to 18,537.89, 27,809.54 and 5,388.55

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Solution

The fourth proportional to 18,537.89, 27,809.54 and 5,388.55 is: 8,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,537.89 : 27,809.54 = 5,388.55 : x
  2. Step 2: Convert to fraction form
    18,537.89/27,809.54 = 5,388.55/x
  3. Step 3: Cross multiply
    18,537.89x = 27,809.54 × 5,388.55
  4. Step 4: Simplify right side
    18,537.89x = 149,852,930.78
  5. Step 5: Solve for x
    x = 149,852,930.78/18,537.89
  6. Step 6: Final answer
    x = 8,083.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.