Home / 16,865.13-25,303.23-8,100.75

Finding the Fourth Proportional to 16,865.13, 25,303.23 and 8,100.75

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Solution

The fourth proportional to 16,865.13, 25,303.23 and 8,100.75 is: 12,153.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,865.13 : 25,303.23 = 8,100.75 : x
  2. Step 2: Convert to fraction form
    16,865.13/25,303.23 = 8,100.75/x
  3. Step 3: Cross multiply
    16,865.13x = 25,303.23 × 8,100.75
  4. Step 4: Simplify right side
    16,865.13x = 204,975,140.42
  5. Step 5: Solve for x
    x = 204,975,140.42/16,865.13
  6. Step 6: Final answer
    x = 12,153.78

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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.