Home / 11,406.39-15,739.91-6,370.22

Finding the Fourth Proportional to 11,406.39, 15,739.91 and 6,370.22

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Solution

The fourth proportional to 11,406.39, 15,739.91 and 6,370.22 is: 8,790.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.39 : 15,739.91 = 6,370.22 : x
  2. Step 2: Convert to fraction form
    11,406.39/15,739.91 = 6,370.22/x
  3. Step 3: Cross multiply
    11,406.39x = 15,739.91 × 6,370.22
  4. Step 4: Simplify right side
    11,406.39x = 100,266,578.93
  5. Step 5: Solve for x
    x = 100,266,578.93/11,406.39
  6. Step 6: Final answer
    x = 8,790.39

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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.