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Finding the Fourth Proportional to 8,417.58, 12,623.20 and 2,794.20

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Solution

The fourth proportional to 8,417.58, 12,623.20 and 2,794.20 is: 4,190.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,417.58 : 12,623.20 = 2,794.20 : x
  2. Step 2: Convert to fraction form
    8,417.58/12,623.20 = 2,794.20/x
  3. Step 3: Cross multiply
    8,417.58x = 12,623.20 × 2,794.20
  4. Step 4: Simplify right side
    8,417.58x = 35,271,745.44
  5. Step 5: Solve for x
    x = 35,271,745.44/8,417.58
  6. Step 6: Final answer
    x = 4,190.25

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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.