Home / 11,021.36-15,215.40-8,497.94

Finding the Fourth Proportional to 11,021.36, 15,215.40 and 8,497.94

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Solution

The fourth proportional to 11,021.36, 15,215.40 and 8,497.94 is: 11,731.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.36 : 15,215.40 = 8,497.94 : x
  2. Step 2: Convert to fraction form
    11,021.36/15,215.40 = 8,497.94/x
  3. Step 3: Cross multiply
    11,021.36x = 15,215.40 × 8,497.94
  4. Step 4: Simplify right side
    11,021.36x = 129,299,556.28
  5. Step 5: Solve for x
    x = 129,299,556.28/11,021.36
  6. Step 6: Final answer
    x = 11,731.72

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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.