Home / 18,787.02-28,163.93-7,092.05

Finding the Fourth Proportional to 18,787.02, 28,163.93 and 7,092.05

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Solution

The fourth proportional to 18,787.02, 28,163.93 and 7,092.05 is: 10,631.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.02 : 28,163.93 = 7,092.05 : x
  2. Step 2: Convert to fraction form
    18,787.02/28,163.93 = 7,092.05/x
  3. Step 3: Cross multiply
    18,787.02x = 28,163.93 × 7,092.05
  4. Step 4: Simplify right side
    18,787.02x = 199,739,823.48
  5. Step 5: Solve for x
    x = 199,739,823.48/18,787.02
  6. Step 6: Final answer
    x = 10,631.80

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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.