Home / 18,310.37-27,466.93-7,779.21

Finding the Fourth Proportional to 18,310.37, 27,466.93 and 7,779.21

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Solution

The fourth proportional to 18,310.37, 27,466.93 and 7,779.21 is: 11,669.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.37 : 27,466.93 = 7,779.21 : x
  2. Step 2: Convert to fraction form
    18,310.37/27,466.93 = 7,779.21/x
  3. Step 3: Cross multiply
    18,310.37x = 27,466.93 × 7,779.21
  4. Step 4: Simplify right side
    18,310.37x = 213,670,923.25
  5. Step 5: Solve for x
    x = 213,670,923.25/18,310.37
  6. Step 6: Final answer
    x = 11,669.39

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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.