Home / 13,473.21-18,611.18-12,215.68

Finding the Fourth Proportional to 13,473.21, 18,611.18 and 12,215.68

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Solution

The fourth proportional to 13,473.21, 18,611.18 and 12,215.68 is: 16,874.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,473.21 : 18,611.18 = 12,215.68 : x
  2. Step 2: Convert to fraction form
    13,473.21/18,611.18 = 12,215.68/x
  3. Step 3: Cross multiply
    13,473.21x = 18,611.18 × 12,215.68
  4. Step 4: Simplify right side
    13,473.21x = 227,348,219.30
  5. Step 5: Solve for x
    x = 227,348,219.30/13,473.21
  6. Step 6: Final answer
    x = 16,874.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.