Home / 15,040.82-20,743.74-11,272.83

Finding the Fourth Proportional to 15,040.82, 20,743.74 and 11,272.83

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Solution

The fourth proportional to 15,040.82, 20,743.74 and 11,272.83 is: 15,547.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.82 : 20,743.74 = 11,272.83 : x
  2. Step 2: Convert to fraction form
    15,040.82/20,743.74 = 11,272.83/x
  3. Step 3: Cross multiply
    15,040.82x = 20,743.74 × 11,272.83
  4. Step 4: Simplify right side
    15,040.82x = 233,840,654.58
  5. Step 5: Solve for x
    x = 233,840,654.58/15,040.82
  6. Step 6: Final answer
    x = 15,547.07

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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.