Home / 8,412.28-12,619.68-4,028.92

Finding the Fourth Proportional to 8,412.28, 12,619.68 and 4,028.92

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Solution

The fourth proportional to 8,412.28, 12,619.68 and 4,028.92 is: 6,043.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.28 : 12,619.68 = 4,028.92 : x
  2. Step 2: Convert to fraction form
    8,412.28/12,619.68 = 4,028.92/x
  3. Step 3: Cross multiply
    8,412.28x = 12,619.68 × 4,028.92
  4. Step 4: Simplify right side
    8,412.28x = 50,843,681.15
  5. Step 5: Solve for x
    x = 50,843,681.15/8,412.28
  6. Step 6: Final answer
    x = 6,043.98

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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.