Home / 8,879.08-12,248.60-6,779.56

Finding the Fourth Proportional to 8,879.08, 12,248.60 and 6,779.56

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Solution

The fourth proportional to 8,879.08, 12,248.60 and 6,779.56 is: 9,352.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.08 : 12,248.60 = 6,779.56 : x
  2. Step 2: Convert to fraction form
    8,879.08/12,248.60 = 6,779.56/x
  3. Step 3: Cross multiply
    8,879.08x = 12,248.60 × 6,779.56
  4. Step 4: Simplify right side
    8,879.08x = 83,040,118.62
  5. Step 5: Solve for x
    x = 83,040,118.62/8,879.08
  6. Step 6: Final answer
    x = 9,352.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.