Home / 18,975.11-28,462.05-8,586.86

Finding the Fourth Proportional to 18,975.11, 28,462.05 and 8,586.86

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Solution

The fourth proportional to 18,975.11, 28,462.05 and 8,586.86 is: 12,880.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,975.11 : 28,462.05 = 8,586.86 : x
  2. Step 2: Convert to fraction form
    18,975.11/28,462.05 = 8,586.86/x
  3. Step 3: Cross multiply
    18,975.11x = 28,462.05 × 8,586.86
  4. Step 4: Simplify right side
    18,975.11x = 244,399,496.35
  5. Step 5: Solve for x
    x = 244,399,496.35/18,975.11
  6. Step 6: Final answer
    x = 12,880.01

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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.