Home / 8,678.27-11,976.03-4,699.38

Finding the Fourth Proportional to 8,678.27, 11,976.03 and 4,699.38

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Solution

The fourth proportional to 8,678.27, 11,976.03 and 4,699.38 is: 6,485.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.27 : 11,976.03 = 4,699.38 : x
  2. Step 2: Convert to fraction form
    8,678.27/11,976.03 = 4,699.38/x
  3. Step 3: Cross multiply
    8,678.27x = 11,976.03 × 4,699.38
  4. Step 4: Simplify right side
    8,678.27x = 56,279,915.86
  5. Step 5: Solve for x
    x = 56,279,915.86/8,678.27
  6. Step 6: Final answer
    x = 6,485.15

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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.