Home / 7,699.35-11,551.73-3,318.15

Finding the Fourth Proportional to 7,699.35, 11,551.73 and 3,318.15

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Solution

The fourth proportional to 7,699.35, 11,551.73 and 3,318.15 is: 4,978.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,699.35 : 11,551.73 = 3,318.15 : x
  2. Step 2: Convert to fraction form
    7,699.35/11,551.73 = 3,318.15/x
  3. Step 3: Cross multiply
    7,699.35x = 11,551.73 × 3,318.15
  4. Step 4: Simplify right side
    7,699.35x = 38,330,356.31
  5. Step 5: Solve for x
    x = 38,330,356.31/7,699.35
  6. Step 6: Final answer
    x = 4,978.39

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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.