Home / 18,954.54-28,433.16-5,805.21

Finding the Fourth Proportional to 18,954.54, 28,433.16 and 5,805.21

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Solution

The fourth proportional to 18,954.54, 28,433.16 and 5,805.21 is: 8,708.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954.54 : 28,433.16 = 5,805.21 : x
  2. Step 2: Convert to fraction form
    18,954.54/28,433.16 = 5,805.21/x
  3. Step 3: Cross multiply
    18,954.54x = 28,433.16 × 5,805.21
  4. Step 4: Simplify right side
    18,954.54x = 165,060,464.76
  5. Step 5: Solve for x
    x = 165,060,464.76/18,954.54
  6. Step 6: Final answer
    x = 8,708.23

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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.