Home / 13,622.08-20,459.04-8,464

Finding the Fourth Proportional to 13,622.08, 20,459.04 and 8,464

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Solution

The fourth proportional to 13,622.08, 20,459.04 and 8,464 is: 12,712.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.08 : 20,459.04 = 8,464 : x
  2. Step 2: Convert to fraction form
    13,622.08/20,459.04 = 8,464/x
  3. Step 3: Cross multiply
    13,622.08x = 20,459.04 × 8,464
  4. Step 4: Simplify right side
    13,622.08x = 173,165,314.56
  5. Step 5: Solve for x
    x = 173,165,314.56/13,622.08
  6. Step 6: Final answer
    x = 12,712.11

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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.