Home / 13,571.08-20,379.74-8,835.30

Finding the Fourth Proportional to 13,571.08, 20,379.74 and 8,835.30

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Solution

The fourth proportional to 13,571.08, 20,379.74 and 8,835.30 is: 13,268.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.08 : 20,379.74 = 8,835.30 : x
  2. Step 2: Convert to fraction form
    13,571.08/20,379.74 = 8,835.30/x
  3. Step 3: Cross multiply
    13,571.08x = 20,379.74 × 8,835.30
  4. Step 4: Simplify right side
    13,571.08x = 180,061,072.65
  5. Step 5: Solve for x
    x = 180,061,072.65/13,571.08
  6. Step 6: Final answer
    x = 13,268.00

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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.