Home / 13,779.19-20,658.07-4,413.82

Finding the Fourth Proportional to 13,779.19, 20,658.07 and 4,413.82

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Solution

The fourth proportional to 13,779.19, 20,658.07 and 4,413.82 is: 6,617.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779.19 : 20,658.07 = 4,413.82 : x
  2. Step 2: Convert to fraction form
    13,779.19/20,658.07 = 4,413.82/x
  3. Step 3: Cross multiply
    13,779.19x = 20,658.07 × 4,413.82
  4. Step 4: Simplify right side
    13,779.19x = 91,181,002.53
  5. Step 5: Solve for x
    x = 91,181,002.53/13,779.19
  6. Step 6: Final answer
    x = 6,617.30

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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.