Home / 11,286.09-15,567.06-7,743.15

Finding the Fourth Proportional to 11,286.09, 15,567.06 and 7,743.15

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Solution

The fourth proportional to 11,286.09, 15,567.06 and 7,743.15 is: 10,680.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.09 : 15,567.06 = 7,743.15 : x
  2. Step 2: Convert to fraction form
    11,286.09/15,567.06 = 7,743.15/x
  3. Step 3: Cross multiply
    11,286.09x = 15,567.06 × 7,743.15
  4. Step 4: Simplify right side
    11,286.09x = 120,538,080.64
  5. Step 5: Solve for x
    x = 120,538,080.64/11,286.09
  6. Step 6: Final answer
    x = 10,680.23

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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.