Home / 13,861.03-20,796.71-8,318.35

Finding the Fourth Proportional to 13,861.03, 20,796.71 and 8,318.35

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Solution

The fourth proportional to 13,861.03, 20,796.71 and 8,318.35 is: 12,480.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.03 : 20,796.71 = 8,318.35 : x
  2. Step 2: Convert to fraction form
    13,861.03/20,796.71 = 8,318.35/x
  3. Step 3: Cross multiply
    13,861.03x = 20,796.71 × 8,318.35
  4. Step 4: Simplify right side
    13,861.03x = 172,994,219.04
  5. Step 5: Solve for x
    x = 172,994,219.04/13,861.03
  6. Step 6: Final answer
    x = 12,480.62

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1.5x scale

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.