Home / 9,665.15-13,334.85-5,415.62

Finding the Fourth Proportional to 9,665.15, 13,334.85 and 5,415.62

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Solution

The fourth proportional to 9,665.15, 13,334.85 and 5,415.62 is: 7,471.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,665.15 : 13,334.85 = 5,415.62 : x
  2. Step 2: Convert to fraction form
    9,665.15/13,334.85 = 5,415.62/x
  3. Step 3: Cross multiply
    9,665.15x = 13,334.85 × 5,415.62
  4. Step 4: Simplify right side
    9,665.15x = 72,216,413.68
  5. Step 5: Solve for x
    x = 72,216,413.68/9,665.15
  6. Step 6: Final answer
    x = 7,471.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.