Home / 7,413.12-11,109.96-4,779.81

Finding the Fourth Proportional to 7,413.12, 11,109.96 and 4,779.81

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Solution

The fourth proportional to 7,413.12, 11,109.96 and 4,779.81 is: 7,163.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.12 : 11,109.96 = 4,779.81 : x
  2. Step 2: Convert to fraction form
    7,413.12/11,109.96 = 4,779.81/x
  3. Step 3: Cross multiply
    7,413.12x = 11,109.96 × 4,779.81
  4. Step 4: Simplify right side
    7,413.12x = 53,103,497.91
  5. Step 5: Solve for x
    x = 53,103,497.91/7,413.12
  6. Step 6: Final answer
    x = 7,163.45

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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.