Home / 15,629.11-21,568.23-8,556.19

Finding the Fourth Proportional to 15,629.11, 21,568.23 and 8,556.19

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Solution

The fourth proportional to 15,629.11, 21,568.23 and 8,556.19 is: 11,807.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.11 : 21,568.23 = 8,556.19 : x
  2. Step 2: Convert to fraction form
    15,629.11/21,568.23 = 8,556.19/x
  3. Step 3: Cross multiply
    15,629.11x = 21,568.23 × 8,556.19
  4. Step 4: Simplify right side
    15,629.11x = 184,541,873.84
  5. Step 5: Solve for x
    x = 184,541,873.84/15,629.11
  6. Step 6: Final answer
    x = 11,807.57

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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.