Home / 11,123.84-16,680.36-4,198.88

Finding the Fourth Proportional to 11,123.84, 16,680.36 and 4,198.88

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Solution

The fourth proportional to 11,123.84, 16,680.36 and 4,198.88 is: 6,296.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.84 : 16,680.36 = 4,198.88 : x
  2. Step 2: Convert to fraction form
    11,123.84/16,680.36 = 4,198.88/x
  3. Step 3: Cross multiply
    11,123.84x = 16,680.36 × 4,198.88
  4. Step 4: Simplify right side
    11,123.84x = 70,038,830.00
  5. Step 5: Solve for x
    x = 70,038,830.00/11,123.84
  6. Step 6: Final answer
    x = 6,296.28

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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.