Home / 18,851.73-28,280.70-6,372.51

Finding the Fourth Proportional to 18,851.73, 28,280.70 and 6,372.51

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Solution

The fourth proportional to 18,851.73, 28,280.70 and 6,372.51 is: 9,559.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851.73 : 28,280.70 = 6,372.51 : x
  2. Step 2: Convert to fraction form
    18,851.73/28,280.70 = 6,372.51/x
  3. Step 3: Cross multiply
    18,851.73x = 28,280.70 × 6,372.51
  4. Step 4: Simplify right side
    18,851.73x = 180,219,043.56
  5. Step 5: Solve for x
    x = 180,219,043.56/18,851.73
  6. Step 6: Final answer
    x = 9,559.81

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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.