Home / 7,921.24-11,879.90-3,536.28

Finding the Fourth Proportional to 7,921.24, 11,879.90 and 3,536.28

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Solution

The fourth proportional to 7,921.24, 11,879.90 and 3,536.28 is: 5,303.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.24 : 11,879.90 = 3,536.28 : x
  2. Step 2: Convert to fraction form
    7,921.24/11,879.90 = 3,536.28/x
  3. Step 3: Cross multiply
    7,921.24x = 11,879.90 × 3,536.28
  4. Step 4: Simplify right side
    7,921.24x = 42,010,652.77
  5. Step 5: Solve for x
    x = 42,010,652.77/7,921.24
  6. Step 6: Final answer
    x = 5,303.54

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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.