Home / 11,163.64-15,407.96-7,386.88

Finding the Fourth Proportional to 11,163.64, 15,407.96 and 7,386.88

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Solution

The fourth proportional to 11,163.64, 15,407.96 and 7,386.88 is: 10,195.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.64 : 15,407.96 = 7,386.88 : x
  2. Step 2: Convert to fraction form
    11,163.64/15,407.96 = 7,386.88/x
  3. Step 3: Cross multiply
    11,163.64x = 15,407.96 × 7,386.88
  4. Step 4: Simplify right side
    11,163.64x = 113,816,751.56
  5. Step 5: Solve for x
    x = 113,816,751.56/11,163.64
  6. Step 6: Final answer
    x = 10,195.31

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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.