Home / 13,781.96-20,659.70-4,416.84

Finding the Fourth Proportional to 13,781.96, 20,659.70 and 4,416.84

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Solution

The fourth proportional to 13,781.96, 20,659.70 and 4,416.84 is: 6,621.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.96 : 20,659.70 = 4,416.84 : x
  2. Step 2: Convert to fraction form
    13,781.96/20,659.70 = 4,416.84/x
  3. Step 3: Cross multiply
    13,781.96x = 20,659.70 × 4,416.84
  4. Step 4: Simplify right side
    13,781.96x = 91,250,589.35
  5. Step 5: Solve for x
    x = 91,250,589.35/13,781.96
  6. Step 6: Final answer
    x = 6,621.02

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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.