Home / 18,734.21-28,103.19-5,407.53

Finding the Fourth Proportional to 18,734.21, 28,103.19 and 5,407.53

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Solution

The fourth proportional to 18,734.21, 28,103.19 and 5,407.53 is: 8,111.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,734.21 : 28,103.19 = 5,407.53 : x
  2. Step 2: Convert to fraction form
    18,734.21/28,103.19 = 5,407.53/x
  3. Step 3: Cross multiply
    18,734.21x = 28,103.19 × 5,407.53
  4. Step 4: Simplify right side
    18,734.21x = 151,968,843.02
  5. Step 5: Solve for x
    x = 151,968,843.02/18,734.21
  6. Step 6: Final answer
    x = 8,111.84

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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.