Home / 8,428.53-12,642.42-2,882.37

Finding the Fourth Proportional to 8,428.53, 12,642.42 and 2,882.37

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Solution

The fourth proportional to 8,428.53, 12,642.42 and 2,882.37 is: 4,323.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.53 : 12,642.42 = 2,882.37 : x
  2. Step 2: Convert to fraction form
    8,428.53/12,642.42 = 2,882.37/x
  3. Step 3: Cross multiply
    8,428.53x = 12,642.42 × 2,882.37
  4. Step 4: Simplify right side
    8,428.53x = 36,440,132.14
  5. Step 5: Solve for x
    x = 36,440,132.14/8,428.53
  6. Step 6: Final answer
    x = 4,323.43

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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.