Home / 8,275.75-12,413.53-3,345.30

Finding the Fourth Proportional to 8,275.75, 12,413.53 and 3,345.30

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Solution

The fourth proportional to 8,275.75, 12,413.53 and 3,345.30 is: 5,017.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.75 : 12,413.53 = 3,345.30 : x
  2. Step 2: Convert to fraction form
    8,275.75/12,413.53 = 3,345.30/x
  3. Step 3: Cross multiply
    8,275.75x = 12,413.53 × 3,345.30
  4. Step 4: Simplify right side
    8,275.75x = 41,526,981.91
  5. Step 5: Solve for x
    x = 41,526,981.91/8,275.75
  6. Step 6: Final answer
    x = 5,017.91

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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.