Home / 13,817.43-20,730.20-4,457.27

Finding the Fourth Proportional to 13,817.43, 20,730.20 and 4,457.27

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Solution

The fourth proportional to 13,817.43, 20,730.20 and 4,457.27 is: 6,687.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.43 : 20,730.20 = 4,457.27 : x
  2. Step 2: Convert to fraction form
    13,817.43/20,730.20 = 4,457.27/x
  3. Step 3: Cross multiply
    13,817.43x = 20,730.20 × 4,457.27
  4. Step 4: Simplify right side
    13,817.43x = 92,400,128.09
  5. Step 5: Solve for x
    x = 92,400,128.09/13,817.43
  6. Step 6: Final answer
    x = 6,687.22

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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.