Home / 7,413.20-11,093.43-6,385.40

Finding the Fourth Proportional to 7,413.20, 11,093.43 and 6,385.40

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Solution

The fourth proportional to 7,413.20, 11,093.43 and 6,385.40 is: 9,555.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.20 : 11,093.43 = 6,385.40 : x
  2. Step 2: Convert to fraction form
    7,413.20/11,093.43 = 6,385.40/x
  3. Step 3: Cross multiply
    7,413.20x = 11,093.43 × 6,385.40
  4. Step 4: Simplify right side
    7,413.20x = 70,835,987.92
  5. Step 5: Solve for x
    x = 70,835,987.92/7,413.20
  6. Step 6: Final answer
    x = 9,555.39

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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.