Home / 8,111.64-11,194.46-4,574.78

Finding the Fourth Proportional to 8,111.64, 11,194.46 and 4,574.78

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Solution

The fourth proportional to 8,111.64, 11,194.46 and 4,574.78 is: 6,313.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.64 : 11,194.46 = 4,574.78 : x
  2. Step 2: Convert to fraction form
    8,111.64/11,194.46 = 4,574.78/x
  3. Step 3: Cross multiply
    8,111.64x = 11,194.46 × 4,574.78
  4. Step 4: Simplify right side
    8,111.64x = 51,212,191.72
  5. Step 5: Solve for x
    x = 51,212,191.72/8,111.64
  6. Step 6: Final answer
    x = 6,313.42

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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.