Home / 15,629.67-21,568.95-8,556.54

Finding the Fourth Proportional to 15,629.67, 21,568.95 and 8,556.54

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Solution

The fourth proportional to 15,629.67, 21,568.95 and 8,556.54 is: 11,808.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.67 : 21,568.95 = 8,556.54 : x
  2. Step 2: Convert to fraction form
    15,629.67/21,568.95 = 8,556.54/x
  3. Step 3: Cross multiply
    15,629.67x = 21,568.95 × 8,556.54
  4. Step 4: Simplify right side
    15,629.67x = 184,555,583.43
  5. Step 5: Solve for x
    x = 184,555,583.43/15,629.67
  6. Step 6: Final answer
    x = 11,808.03

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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.