Home / 7,703.20-11,555.12-6,413.76

Finding the Fourth Proportional to 7,703.20, 11,555.12 and 6,413.76

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Solution

The fourth proportional to 7,703.20, 11,555.12 and 6,413.76 is: 9,620.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,703.20 : 11,555.12 = 6,413.76 : x
  2. Step 2: Convert to fraction form
    7,703.20/11,555.12 = 6,413.76/x
  3. Step 3: Cross multiply
    7,703.20x = 11,555.12 × 6,413.76
  4. Step 4: Simplify right side
    7,703.20x = 74,111,766.45
  5. Step 5: Solve for x
    x = 74,111,766.45/7,703.20
  6. Step 6: Final answer
    x = 9,620.91

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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.