Home / 11,115.10-16,668.60-4,448.80

Finding the Fourth Proportional to 11,115.10, 16,668.60 and 4,448.80

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Solution

The fourth proportional to 11,115.10, 16,668.60 and 4,448.80 is: 6,671.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.10 : 16,668.60 = 4,448.80 : x
  2. Step 2: Convert to fraction form
    11,115.10/16,668.60 = 4,448.80/x
  3. Step 3: Cross multiply
    11,115.10x = 16,668.60 × 4,448.80
  4. Step 4: Simplify right side
    11,115.10x = 74,155,267.68
  5. Step 5: Solve for x
    x = 74,155,267.68/11,115.10
  6. Step 6: Final answer
    x = 6,671.58

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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.