Home / 18,941.12-28,413.12-5,089.92

Finding the Fourth Proportional to 18,941.12, 28,413.12 and 5,089.92

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Solution

The fourth proportional to 18,941.12, 28,413.12 and 5,089.92 is: 7,635.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.12 : 28,413.12 = 5,089.92 : x
  2. Step 2: Convert to fraction form
    18,941.12/28,413.12 = 5,089.92/x
  3. Step 3: Cross multiply
    18,941.12x = 28,413.12 × 5,089.92
  4. Step 4: Simplify right side
    18,941.12x = 144,620,507.75
  5. Step 5: Solve for x
    x = 144,620,507.75/18,941.12
  6. Step 6: Final answer
    x = 7,635.27

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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.