Home / 8,210.21-12,315.75-2,662.82

Finding the Fourth Proportional to 8,210.21, 12,315.75 and 2,662.82

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Solution

The fourth proportional to 8,210.21, 12,315.75 and 2,662.82 is: 3,994.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210.21 : 12,315.75 = 2,662.82 : x
  2. Step 2: Convert to fraction form
    8,210.21/12,315.75 = 2,662.82/x
  3. Step 3: Cross multiply
    8,210.21x = 12,315.75 × 2,662.82
  4. Step 4: Simplify right side
    8,210.21x = 32,794,625.42
  5. Step 5: Solve for x
    x = 32,794,625.42/8,210.21
  6. Step 6: Final answer
    x = 3,994.37

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1.5x scale

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.