Home / 11,072.53-16,590.30-7,779.73

Finding the Fourth Proportional to 11,072.53, 16,590.30 and 7,779.73

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Solution

The fourth proportional to 11,072.53, 16,590.30 and 7,779.73 is: 11,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,072.53 : 16,590.30 = 7,779.73 : x
  2. Step 2: Convert to fraction form
    11,072.53/16,590.30 = 7,779.73/x
  3. Step 3: Cross multiply
    11,072.53x = 16,590.30 × 7,779.73
  4. Step 4: Simplify right side
    11,072.53x = 129,067,971.67
  5. Step 5: Solve for x
    x = 129,067,971.67/11,072.53
  6. Step 6: Final answer
    x = 11,656.60

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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.