Home / 8,454.30-11,668.29-5,621.73

Finding the Fourth Proportional to 8,454.30, 11,668.29 and 5,621.73

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Solution

The fourth proportional to 8,454.30, 11,668.29 and 5,621.73 is: 7,758.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.30 : 11,668.29 = 5,621.73 : x
  2. Step 2: Convert to fraction form
    8,454.30/11,668.29 = 5,621.73/x
  3. Step 3: Cross multiply
    8,454.30x = 11,668.29 × 5,621.73
  4. Step 4: Simplify right side
    8,454.30x = 65,595,975.94
  5. Step 5: Solve for x
    x = 65,595,975.94/8,454.30
  6. Step 6: Final answer
    x = 7,758.89

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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.