Home / 18,747.02-28,101-8,874.56

Finding the Fourth Proportional to 18,747.02, 28,101 and 8,874.56

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Solution

The fourth proportional to 18,747.02, 28,101 and 8,874.56 is: 13,302.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.02 : 28,101 = 8,874.56 : x
  2. Step 2: Convert to fraction form
    18,747.02/28,101 = 8,874.56/x
  3. Step 3: Cross multiply
    18,747.02x = 28,101 × 8,874.56
  4. Step 4: Simplify right side
    18,747.02x = 249,384,010.56
  5. Step 5: Solve for x
    x = 249,384,010.56/18,747.02
  6. Step 6: Final answer
    x = 13,302.59

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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.