Home / 11,209.19-16,813.63-3,818.80

Finding the Fourth Proportional to 11,209.19, 16,813.63 and 3,818.80

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Solution

The fourth proportional to 11,209.19, 16,813.63 and 3,818.80 is: 5,728.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.19 : 16,813.63 = 3,818.80 : x
  2. Step 2: Convert to fraction form
    11,209.19/16,813.63 = 3,818.80/x
  3. Step 3: Cross multiply
    11,209.19x = 16,813.63 × 3,818.80
  4. Step 4: Simplify right side
    11,209.19x = 64,207,799.98
  5. Step 5: Solve for x
    x = 64,207,799.98/11,209.19
  6. Step 6: Final answer
    x = 5,728.14

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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.