Home / 8,676.10-11,975.21-7,790.37

Finding the Fourth Proportional to 8,676.10, 11,975.21 and 7,790.37

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Solution

The fourth proportional to 8,676.10, 11,975.21 and 7,790.37 is: 10,752.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.10 : 11,975.21 = 7,790.37 : x
  2. Step 2: Convert to fraction form
    8,676.10/11,975.21 = 7,790.37/x
  3. Step 3: Cross multiply
    8,676.10x = 11,975.21 × 7,790.37
  4. Step 4: Simplify right side
    8,676.10x = 93,291,316.73
  5. Step 5: Solve for x
    x = 93,291,316.73/8,676.10
  6. Step 6: Final answer
    x = 10,752.68

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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.