Home / 13,814.75-20,722.19-4,455.47

Finding the Fourth Proportional to 13,814.75, 20,722.19 and 4,455.47

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Solution

The fourth proportional to 13,814.75, 20,722.19 and 4,455.47 is: 6,683.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,814.75 : 20,722.19 = 4,455.47 : x
  2. Step 2: Convert to fraction form
    13,814.75/20,722.19 = 4,455.47/x
  3. Step 3: Cross multiply
    13,814.75x = 20,722.19 × 4,455.47
  4. Step 4: Simplify right side
    13,814.75x = 92,327,125.41
  5. Step 5: Solve for x
    x = 92,327,125.41/13,814.75
  6. Step 6: Final answer
    x = 6,683.23

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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.