Home / 8,120.56-11,207.34-4,764.64

Finding the Fourth Proportional to 8,120.56, 11,207.34 and 4,764.64

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Solution

The fourth proportional to 8,120.56, 11,207.34 and 4,764.64 is: 6,575.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.56 : 11,207.34 = 4,764.64 : x
  2. Step 2: Convert to fraction form
    8,120.56/11,207.34 = 4,764.64/x
  3. Step 3: Cross multiply
    8,120.56x = 11,207.34 × 4,764.64
  4. Step 4: Simplify right side
    8,120.56x = 53,398,940.46
  5. Step 5: Solve for x
    x = 53,398,940.46/8,120.56
  6. Step 6: Final answer
    x = 6,575.77

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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.