Home / 7,135.32-9,847.26-3,992.52

Finding the Fourth Proportional to 7,135.32, 9,847.26 and 3,992.52

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Solution

The fourth proportional to 7,135.32, 9,847.26 and 3,992.52 is: 5,509.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.32 : 9,847.26 = 3,992.52 : x
  2. Step 2: Convert to fraction form
    7,135.32/9,847.26 = 3,992.52/x
  3. Step 3: Cross multiply
    7,135.32x = 9,847.26 × 3,992.52
  4. Step 4: Simplify right side
    7,135.32x = 39,315,382.50
  5. Step 5: Solve for x
    x = 39,315,382.50/7,135.32
  6. Step 6: Final answer
    x = 5,509.97

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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.