Home / 8,419.72-12,622.44-3,486.28

Finding the Fourth Proportional to 8,419.72, 12,622.44 and 3,486.28

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Solution

The fourth proportional to 8,419.72, 12,622.44 and 3,486.28 is: 5,226.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.72 : 12,622.44 = 3,486.28 : x
  2. Step 2: Convert to fraction form
    8,419.72/12,622.44 = 3,486.28/x
  3. Step 3: Cross multiply
    8,419.72x = 12,622.44 × 3,486.28
  4. Step 4: Simplify right side
    8,419.72x = 44,005,360.12
  5. Step 5: Solve for x
    x = 44,005,360.12/8,419.72
  6. Step 6: Final answer
    x = 5,226.46

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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.