Home / 8,548.25-12,820.75-3,621.35

Finding the Fourth Proportional to 8,548.25, 12,820.75 and 3,621.35

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Solution

The fourth proportional to 8,548.25, 12,820.75 and 3,621.35 is: 5,431.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,548.25 : 12,820.75 = 3,621.35 : x
  2. Step 2: Convert to fraction form
    8,548.25/12,820.75 = 3,621.35/x
  3. Step 3: Cross multiply
    8,548.25x = 12,820.75 × 3,621.35
  4. Step 4: Simplify right side
    8,548.25x = 46,428,446.01
  5. Step 5: Solve for x
    x = 46,428,446.01/8,548.25
  6. Step 6: Final answer
    x = 5,431.34

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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.