Home / 18,311.41-27,467.96-7,779.92

Finding the Fourth Proportional to 18,311.41, 27,467.96 and 7,779.92

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Solution

The fourth proportional to 18,311.41, 27,467.96 and 7,779.92 is: 11,670.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.41 : 27,467.96 = 7,779.92 : x
  2. Step 2: Convert to fraction form
    18,311.41/27,467.96 = 7,779.92/x
  3. Step 3: Cross multiply
    18,311.41x = 27,467.96 × 7,779.92
  4. Step 4: Simplify right side
    18,311.41x = 213,698,561.13
  5. Step 5: Solve for x
    x = 213,698,561.13/18,311.41
  6. Step 6: Final answer
    x = 11,670.24

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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.