Home / 9,790.85-13,501.43-8,379.22

Finding the Fourth Proportional to 9,790.85, 13,501.43 and 8,379.22

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Solution

The fourth proportional to 9,790.85, 13,501.43 and 8,379.22 is: 11,554.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,790.85 : 13,501.43 = 8,379.22 : x
  2. Step 2: Convert to fraction form
    9,790.85/13,501.43 = 8,379.22/x
  3. Step 3: Cross multiply
    9,790.85x = 13,501.43 × 8,379.22
  4. Step 4: Simplify right side
    9,790.85x = 113,131,384.78
  5. Step 5: Solve for x
    x = 113,131,384.78/9,790.85
  6. Step 6: Final answer
    x = 11,554.81

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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.