Home / 10,803.90-16,205.40-3,413.67

Finding the Fourth Proportional to 10,803.90, 16,205.40 and 3,413.67

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Solution

The fourth proportional to 10,803.90, 16,205.40 and 3,413.67 is: 5,120.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,803.90 : 16,205.40 = 3,413.67 : x
  2. Step 2: Convert to fraction form
    10,803.90/16,205.40 = 3,413.67/x
  3. Step 3: Cross multiply
    10,803.90x = 16,205.40 × 3,413.67
  4. Step 4: Simplify right side
    10,803.90x = 55,319,887.82
  5. Step 5: Solve for x
    x = 55,319,887.82/10,803.90
  6. Step 6: Final answer
    x = 5,120.36

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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.