Home / 11,312.30-16,965.74-3,413.18

Finding the Fourth Proportional to 11,312.30, 16,965.74 and 3,413.18

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Solution

The fourth proportional to 11,312.30, 16,965.74 and 3,413.18 is: 5,118.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.30 : 16,965.74 = 3,413.18 : x
  2. Step 2: Convert to fraction form
    11,312.30/16,965.74 = 3,413.18/x
  3. Step 3: Cross multiply
    11,312.30x = 16,965.74 × 3,413.18
  4. Step 4: Simplify right side
    11,312.30x = 57,907,124.45
  5. Step 5: Solve for x
    x = 57,907,124.45/11,312.30
  6. Step 6: Final answer
    x = 5,118.95

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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.