Home / 11,443.06-15,791.72-6,407.26

Finding the Fourth Proportional to 11,443.06, 15,791.72 and 6,407.26

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Solution

The fourth proportional to 11,443.06, 15,791.72 and 6,407.26 is: 8,842.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,443.06 : 15,791.72 = 6,407.26 : x
  2. Step 2: Convert to fraction form
    11,443.06/15,791.72 = 6,407.26/x
  3. Step 3: Cross multiply
    11,443.06x = 15,791.72 × 6,407.26
  4. Step 4: Simplify right side
    11,443.06x = 101,181,655.89
  5. Step 5: Solve for x
    x = 101,181,655.89/11,443.06
  6. Step 6: Final answer
    x = 8,842.19

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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.