Home / 8,620.56-11,884.32-7,288.92

Finding the Fourth Proportional to 8,620.56, 11,884.32 and 7,288.92

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Solution

The fourth proportional to 8,620.56, 11,884.32 and 7,288.92 is: 10,048.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.56 : 11,884.32 = 7,288.92 : x
  2. Step 2: Convert to fraction form
    8,620.56/11,884.32 = 7,288.92/x
  3. Step 3: Cross multiply
    8,620.56x = 11,884.32 × 7,288.92
  4. Step 4: Simplify right side
    8,620.56x = 86,623,857.73
  5. Step 5: Solve for x
    x = 86,623,857.73/8,620.56
  6. Step 6: Final answer
    x = 10,048.52

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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.