Home / 13,823.22-20,742.85-5,817.39

Finding the Fourth Proportional to 13,823.22, 20,742.85 and 5,817.39

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Solution

The fourth proportional to 13,823.22, 20,742.85 and 5,817.39 is: 8,729.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.22 : 20,742.85 = 5,817.39 : x
  2. Step 2: Convert to fraction form
    13,823.22/20,742.85 = 5,817.39/x
  3. Step 3: Cross multiply
    13,823.22x = 20,742.85 × 5,817.39
  4. Step 4: Simplify right side
    13,823.22x = 120,669,248.16
  5. Step 5: Solve for x
    x = 120,669,248.16/13,823.22
  6. Step 6: Final answer
    x = 8,729.46

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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.