Home / 7,821.21-10,793.21-4,284.35

Finding the Fourth Proportional to 7,821.21, 10,793.21 and 4,284.35

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Solution

The fourth proportional to 7,821.21, 10,793.21 and 4,284.35 is: 5,912.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.21 : 10,793.21 = 4,284.35 : x
  2. Step 2: Convert to fraction form
    7,821.21/10,793.21 = 4,284.35/x
  3. Step 3: Cross multiply
    7,821.21x = 10,793.21 × 4,284.35
  4. Step 4: Simplify right side
    7,821.21x = 46,241,813.88
  5. Step 5: Solve for x
    x = 46,241,813.88/7,821.21
  6. Step 6: Final answer
    x = 5,912.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.