Home / 8,419.55-12,629.34-2,576.12

Finding the Fourth Proportional to 8,419.55, 12,629.34 and 2,576.12

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Solution

The fourth proportional to 8,419.55, 12,629.34 and 2,576.12 is: 3,864.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.55 : 12,629.34 = 2,576.12 : x
  2. Step 2: Convert to fraction form
    8,419.55/12,629.34 = 2,576.12/x
  3. Step 3: Cross multiply
    8,419.55x = 12,629.34 × 2,576.12
  4. Step 4: Simplify right side
    8,419.55x = 32,534,632.21
  5. Step 5: Solve for x
    x = 32,534,632.21/8,419.55
  6. Step 6: Final answer
    x = 3,864.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.