Home / 8,709.33-12,012.53-5,523.60

Finding the Fourth Proportional to 8,709.33, 12,012.53 and 5,523.60

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Solution

The fourth proportional to 8,709.33, 12,012.53 and 5,523.60 is: 7,618.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709.33 : 12,012.53 = 5,523.60 : x
  2. Step 2: Convert to fraction form
    8,709.33/12,012.53 = 5,523.60/x
  3. Step 3: Cross multiply
    8,709.33x = 12,012.53 × 5,523.60
  4. Step 4: Simplify right side
    8,709.33x = 66,352,383.09
  5. Step 5: Solve for x
    x = 66,352,383.09/8,709.33
  6. Step 6: Final answer
    x = 7,618.54

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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.