Home / 8,678.85-11,976.67-4,699.93

Finding the Fourth Proportional to 8,678.85, 11,976.67 and 4,699.93

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Solution

The fourth proportional to 8,678.85, 11,976.67 and 4,699.93 is: 6,485.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.85 : 11,976.67 = 4,699.93 : x
  2. Step 2: Convert to fraction form
    8,678.85/11,976.67 = 4,699.93/x
  3. Step 3: Cross multiply
    8,678.85x = 11,976.67 × 4,699.93
  4. Step 4: Simplify right side
    8,678.85x = 56,289,510.63
  5. Step 5: Solve for x
    x = 56,289,510.63/8,678.85
  6. Step 6: Final answer
    x = 6,485.83

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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.