Home / 8,566.56-11,821.62-4,789.78

Finding the Fourth Proportional to 8,566.56, 11,821.62 and 4,789.78

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Solution

The fourth proportional to 8,566.56, 11,821.62 and 4,789.78 is: 6,609.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,566.56 : 11,821.62 = 4,789.78 : x
  2. Step 2: Convert to fraction form
    8,566.56/11,821.62 = 4,789.78/x
  3. Step 3: Cross multiply
    8,566.56x = 11,821.62 × 4,789.78
  4. Step 4: Simplify right side
    8,566.56x = 56,622,959.04
  5. Step 5: Solve for x
    x = 56,622,959.04/8,566.56
  6. Step 6: Final answer
    x = 6,609.77

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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.