Home / 8,114.75-12,172.14-2,642.75

Finding the Fourth Proportional to 8,114.75, 12,172.14 and 2,642.75

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Solution

The fourth proportional to 8,114.75, 12,172.14 and 2,642.75 is: 3,964.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.75 : 12,172.14 = 2,642.75 : x
  2. Step 2: Convert to fraction form
    8,114.75/12,172.14 = 2,642.75/x
  3. Step 3: Cross multiply
    8,114.75x = 12,172.14 × 2,642.75
  4. Step 4: Simplify right side
    8,114.75x = 32,167,922.99
  5. Step 5: Solve for x
    x = 32,167,922.99/8,114.75
  6. Step 6: Final answer
    x = 3,964.13

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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.