Home / 11,325.80-16,991.40-5,477.60

Finding the Fourth Proportional to 11,325.80, 16,991.40 and 5,477.60

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Solution

The fourth proportional to 11,325.80, 16,991.40 and 5,477.60 is: 8,217.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.80 : 16,991.40 = 5,477.60 : x
  2. Step 2: Convert to fraction form
    11,325.80/16,991.40 = 5,477.60/x
  3. Step 3: Cross multiply
    11,325.80x = 16,991.40 × 5,477.60
  4. Step 4: Simplify right side
    11,325.80x = 93,072,092.64
  5. Step 5: Solve for x
    x = 93,072,092.64/11,325.80
  6. Step 6: Final answer
    x = 8,217.71

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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.