Home / 13,908.06-20,855.28-6,879.96

Finding the Fourth Proportional to 13,908.06, 20,855.28 and 6,879.96

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Solution

The fourth proportional to 13,908.06, 20,855.28 and 6,879.96 is: 10,316.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.06 : 20,855.28 = 6,879.96 : x
  2. Step 2: Convert to fraction form
    13,908.06/20,855.28 = 6,879.96/x
  3. Step 3: Cross multiply
    13,908.06x = 20,855.28 × 6,879.96
  4. Step 4: Simplify right side
    13,908.06x = 143,483,492.19
  5. Step 5: Solve for x
    x = 143,483,492.19/13,908.06
  6. Step 6: Final answer
    x = 10,316.57

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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.