Home / 8,678.41-11,976.21-4,699.54

Finding the Fourth Proportional to 8,678.41, 11,976.21 and 4,699.54

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Solution

The fourth proportional to 8,678.41, 11,976.21 and 4,699.54 is: 6,485.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.41 : 11,976.21 = 4,699.54 : x
  2. Step 2: Convert to fraction form
    8,678.41/11,976.21 = 4,699.54/x
  3. Step 3: Cross multiply
    8,678.41x = 11,976.21 × 4,699.54
  4. Step 4: Simplify right side
    8,678.41x = 56,282,677.94
  5. Step 5: Solve for x
    x = 56,282,677.94/8,678.41
  6. Step 6: Final answer
    x = 6,485.37

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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.