Home / 7,779.11-11,670.18-2,515.42

Finding the Fourth Proportional to 7,779.11, 11,670.18 and 2,515.42

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Solution

The fourth proportional to 7,779.11, 11,670.18 and 2,515.42 is: 3,773.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.11 : 11,670.18 = 2,515.42 : x
  2. Step 2: Convert to fraction form
    7,779.11/11,670.18 = 2,515.42/x
  3. Step 3: Cross multiply
    7,779.11x = 11,670.18 × 2,515.42
  4. Step 4: Simplify right side
    7,779.11x = 29,355,409.33
  5. Step 5: Solve for x
    x = 29,355,409.33/7,779.11
  6. Step 6: Final answer
    x = 3,773.62

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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.