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Finding the Fourth Proportional to 8,388.82, 12,578.95 and 4,442.23

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Solution

The fourth proportional to 8,388.82, 12,578.95 and 4,442.23 is: 6,661.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,388.82 : 12,578.95 = 4,442.23 : x
  2. Step 2: Convert to fraction form
    8,388.82/12,578.95 = 4,442.23/x
  3. Step 3: Cross multiply
    8,388.82x = 12,578.95 × 4,442.23
  4. Step 4: Simplify right side
    8,388.82x = 55,878,589.06
  5. Step 5: Solve for x
    x = 55,878,589.06/8,388.82
  6. Step 6: Final answer
    x = 6,661.08

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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.