Home / 8,231.40-11,359.31-4,694.58

Finding the Fourth Proportional to 8,231.40, 11,359.31 and 4,694.58

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Solution

The fourth proportional to 8,231.40, 11,359.31 and 4,694.58 is: 6,478.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.40 : 11,359.31 = 4,694.58 : x
  2. Step 2: Convert to fraction form
    8,231.40/11,359.31 = 4,694.58/x
  3. Step 3: Cross multiply
    8,231.40x = 11,359.31 × 4,694.58
  4. Step 4: Simplify right side
    8,231.40x = 53,327,166.07
  5. Step 5: Solve for x
    x = 53,327,166.07/8,231.40
  6. Step 6: Final answer
    x = 6,478.51

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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.