Home / 8,419.70-12,630.05-2,576.36

Finding the Fourth Proportional to 8,419.70, 12,630.05 and 2,576.36

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Solution

The fourth proportional to 8,419.70, 12,630.05 and 2,576.36 is: 3,864.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.70 : 12,630.05 = 2,576.36 : x
  2. Step 2: Convert to fraction form
    8,419.70/12,630.05 = 2,576.36/x
  3. Step 3: Cross multiply
    8,419.70x = 12,630.05 × 2,576.36
  4. Step 4: Simplify right side
    8,419.70x = 32,539,479.59
  5. Step 5: Solve for x
    x = 32,539,479.59/8,419.70
  6. Step 6: Final answer
    x = 3,864.69

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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.