Home / 15,040.32-20,743.05-11,272.33

Finding the Fourth Proportional to 15,040.32, 20,743.05 and 11,272.33

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Solution

The fourth proportional to 15,040.32, 20,743.05 and 11,272.33 is: 15,546.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.32 : 20,743.05 = 11,272.33 : x
  2. Step 2: Convert to fraction form
    15,040.32/20,743.05 = 11,272.33/x
  3. Step 3: Cross multiply
    15,040.32x = 20,743.05 × 11,272.33
  4. Step 4: Simplify right side
    15,040.32x = 233,822,504.81
  5. Step 5: Solve for x
    x = 233,822,504.81/15,040.32
  6. Step 6: Final answer
    x = 15,546.38

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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.