Home / 18,517.60-27,777.84-5,370.16

Finding the Fourth Proportional to 18,517.60, 27,777.84 and 5,370.16

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Solution

The fourth proportional to 18,517.60, 27,777.84 and 5,370.16 is: 8,055.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517.60 : 27,777.84 = 5,370.16 : x
  2. Step 2: Convert to fraction form
    18,517.60/27,777.84 = 5,370.16/x
  3. Step 3: Cross multiply
    18,517.60x = 27,777.84 × 5,370.16
  4. Step 4: Simplify right side
    18,517.60x = 149,171,445.25
  5. Step 5: Solve for x
    x = 149,171,445.25/18,517.60
  6. Step 6: Final answer
    x = 8,055.66

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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.