Home / 7,699.57-11,550.56-3,318.28

Finding the Fourth Proportional to 7,699.57, 11,550.56 and 3,318.28

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Solution

The fourth proportional to 7,699.57, 11,550.56 and 3,318.28 is: 4,977.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,699.57 : 11,550.56 = 3,318.28 : x
  2. Step 2: Convert to fraction form
    7,699.57/11,550.56 = 3,318.28/x
  3. Step 3: Cross multiply
    7,699.57x = 11,550.56 × 3,318.28
  4. Step 4: Simplify right side
    7,699.57x = 38,327,992.24
  5. Step 5: Solve for x
    x = 38,327,992.24/7,699.57
  6. Step 6: Final answer
    x = 4,977.94

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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.