Home / 13,205.30-19,808.55-5,413.50

Finding the Fourth Proportional to 13,205.30, 19,808.55 and 5,413.50

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Solution

The fourth proportional to 13,205.30, 19,808.55 and 5,413.50 is: 8,120.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.30 : 19,808.55 = 5,413.50 : x
  2. Step 2: Convert to fraction form
    13,205.30/19,808.55 = 5,413.50/x
  3. Step 3: Cross multiply
    13,205.30x = 19,808.55 × 5,413.50
  4. Step 4: Simplify right side
    13,205.30x = 107,233,585.43
  5. Step 5: Solve for x
    x = 107,233,585.43/13,205.30
  6. Step 6: Final answer
    x = 8,120.50

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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.