Home / 8,946.21-13,416.12-3,679.68

Finding the Fourth Proportional to 8,946.21, 13,416.12 and 3,679.68

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Solution

The fourth proportional to 8,946.21, 13,416.12 and 3,679.68 is: 5,518.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,946.21 : 13,416.12 = 3,679.68 : x
  2. Step 2: Convert to fraction form
    8,946.21/13,416.12 = 3,679.68/x
  3. Step 3: Cross multiply
    8,946.21x = 13,416.12 × 3,679.68
  4. Step 4: Simplify right side
    8,946.21x = 49,367,028.44
  5. Step 5: Solve for x
    x = 49,367,028.44/8,946.21
  6. Step 6: Final answer
    x = 5,518.21

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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.