Home / 8,419.18-12,628.97-3,485.47

Finding the Fourth Proportional to 8,419.18, 12,628.97 and 3,485.47

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Solution

The fourth proportional to 8,419.18, 12,628.97 and 3,485.47 is: 5,228.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.18 : 12,628.97 = 3,485.47 : x
  2. Step 2: Convert to fraction form
    8,419.18/12,628.97 = 3,485.47/x
  3. Step 3: Cross multiply
    8,419.18x = 12,628.97 × 3,485.47
  4. Step 4: Simplify right side
    8,419.18x = 44,017,815.49
  5. Step 5: Solve for x
    x = 44,017,815.49/8,419.18
  6. Step 6: Final answer
    x = 5,228.28

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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.