Home / 13,486.22-20,226.08-6,909.02

Finding the Fourth Proportional to 13,486.22, 20,226.08 and 6,909.02

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Solution

The fourth proportional to 13,486.22, 20,226.08 and 6,909.02 is: 10,361.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.22 : 20,226.08 = 6,909.02 : x
  2. Step 2: Convert to fraction form
    13,486.22/20,226.08 = 6,909.02/x
  3. Step 3: Cross multiply
    13,486.22x = 20,226.08 × 6,909.02
  4. Step 4: Simplify right side
    13,486.22x = 139,742,391.24
  5. Step 5: Solve for x
    x = 139,742,391.24/13,486.22
  6. Step 6: Final answer
    x = 10,361.87

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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.