Home / 8,412.73-12,619.63-4,942.69

Finding the Fourth Proportional to 8,412.73, 12,619.63 and 4,942.69

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Solution

The fourth proportional to 8,412.73, 12,619.63 and 4,942.69 is: 7,414.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.73 : 12,619.63 = 4,942.69 : x
  2. Step 2: Convert to fraction form
    8,412.73/12,619.63 = 4,942.69/x
  3. Step 3: Cross multiply
    8,412.73x = 12,619.63 × 4,942.69
  4. Step 4: Simplify right side
    8,412.73x = 62,374,893.63
  5. Step 5: Solve for x
    x = 62,374,893.63/8,412.73
  6. Step 6: Final answer
    x = 7,414.35

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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.