Home / 8,678.34-11,976.09-4,901.32

Finding the Fourth Proportional to 8,678.34, 11,976.09 and 4,901.32

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Solution

The fourth proportional to 8,678.34, 11,976.09 and 4,901.32 is: 6,763.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.34 : 11,976.09 = 4,901.32 : x
  2. Step 2: Convert to fraction form
    8,678.34/11,976.09 = 4,901.32/x
  3. Step 3: Cross multiply
    8,678.34x = 11,976.09 × 4,901.32
  4. Step 4: Simplify right side
    8,678.34x = 58,698,649.44
  5. Step 5: Solve for x
    x = 58,698,649.44/8,678.34
  6. Step 6: Final answer
    x = 6,763.81

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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.