Home / 8,063.81-11,131.80-5,379.49

Finding the Fourth Proportional to 8,063.81, 11,131.80 and 5,379.49

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Solution

The fourth proportional to 8,063.81, 11,131.80 and 5,379.49 is: 7,426.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,063.81 : 11,131.80 = 5,379.49 : x
  2. Step 2: Convert to fraction form
    8,063.81/11,131.80 = 5,379.49/x
  3. Step 3: Cross multiply
    8,063.81x = 11,131.80 × 5,379.49
  4. Step 4: Simplify right side
    8,063.81x = 59,883,406.78
  5. Step 5: Solve for x
    x = 59,883,406.78/8,063.81
  6. Step 6: Final answer
    x = 7,426.19

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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.