Home / 18,989.25-28,487.34-6,510.54

Finding the Fourth Proportional to 18,989.25, 28,487.34 and 6,510.54

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Solution

The fourth proportional to 18,989.25, 28,487.34 and 6,510.54 is: 9,766.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989.25 : 28,487.34 = 6,510.54 : x
  2. Step 2: Convert to fraction form
    18,989.25/28,487.34 = 6,510.54/x
  3. Step 3: Cross multiply
    18,989.25x = 28,487.34 × 6,510.54
  4. Step 4: Simplify right side
    18,989.25x = 185,467,835.32
  5. Step 5: Solve for x
    x = 185,467,835.32/18,989.25
  6. Step 6: Final answer
    x = 9,766.99

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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.