Home / 13,355.43-18,413.74-8,566.93

Finding the Fourth Proportional to 13,355.43, 18,413.74 and 8,566.93

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Solution

The fourth proportional to 13,355.43, 18,413.74 and 8,566.93 is: 11,811.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355.43 : 18,413.74 = 8,566.93 : x
  2. Step 2: Convert to fraction form
    13,355.43/18,413.74 = 8,566.93/x
  3. Step 3: Cross multiply
    13,355.43x = 18,413.74 × 8,566.93
  4. Step 4: Simplify right side
    13,355.43x = 157,749,221.62
  5. Step 5: Solve for x
    x = 157,749,221.62/13,355.43
  6. Step 6: Final answer
    x = 11,811.62

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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.