Home / 13,816.78-20,722.26-4,457.68

Finding the Fourth Proportional to 13,816.78, 20,722.26 and 4,457.68

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Solution

The fourth proportional to 13,816.78, 20,722.26 and 4,457.68 is: 6,685.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.78 : 20,722.26 = 4,457.68 : x
  2. Step 2: Convert to fraction form
    13,816.78/20,722.26 = 4,457.68/x
  3. Step 3: Cross multiply
    13,816.78x = 20,722.26 × 4,457.68
  4. Step 4: Simplify right side
    13,816.78x = 92,373,203.96
  5. Step 5: Solve for x
    x = 92,373,203.96/13,816.78
  6. Step 6: Final answer
    x = 6,685.58

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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.