Home / 13,359.30-20,016.99-8,416.68

Finding the Fourth Proportional to 13,359.30, 20,016.99 and 8,416.68

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Solution

The fourth proportional to 13,359.30, 20,016.99 and 8,416.68 is: 12,611.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.30 : 20,016.99 = 8,416.68 : x
  2. Step 2: Convert to fraction form
    13,359.30/20,016.99 = 8,416.68/x
  3. Step 3: Cross multiply
    13,359.30x = 20,016.99 × 8,416.68
  4. Step 4: Simplify right side
    13,359.30x = 168,476,599.39
  5. Step 5: Solve for x
    x = 168,476,599.39/13,359.30
  6. Step 6: Final answer
    x = 12,611.18

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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.