Home / 11,407.83-15,739.11-6,371.25

Finding the Fourth Proportional to 11,407.83, 15,739.11 and 6,371.25

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Solution

The fourth proportional to 11,407.83, 15,739.11 and 6,371.25 is: 8,790.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,407.83 : 15,739.11 = 6,371.25 : x
  2. Step 2: Convert to fraction form
    11,407.83/15,739.11 = 6,371.25/x
  3. Step 3: Cross multiply
    11,407.83x = 15,739.11 × 6,371.25
  4. Step 4: Simplify right side
    11,407.83x = 100,277,804.59
  5. Step 5: Solve for x
    x = 100,277,804.59/11,407.83
  6. Step 6: Final answer
    x = 8,790.26

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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.