Home / 11,116.50-16,679.60-4,189.38

Finding the Fourth Proportional to 11,116.50, 16,679.60 and 4,189.38

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Solution

The fourth proportional to 11,116.50, 16,679.60 and 4,189.38 is: 6,285.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116.50 : 16,679.60 = 4,189.38 : x
  2. Step 2: Convert to fraction form
    11,116.50/16,679.60 = 4,189.38/x
  3. Step 3: Cross multiply
    11,116.50x = 16,679.60 × 4,189.38
  4. Step 4: Simplify right side
    11,116.50x = 69,877,182.65
  5. Step 5: Solve for x
    x = 69,877,182.65/11,116.50
  6. Step 6: Final answer
    x = 6,285.90

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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.