Home / 11,043.21-15,219.14-8,206.09

Finding the Fourth Proportional to 11,043.21, 15,219.14 and 8,206.09

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Solution

The fourth proportional to 11,043.21, 15,219.14 and 8,206.09 is: 11,309.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,043.21 : 15,219.14 = 8,206.09 : x
  2. Step 2: Convert to fraction form
    11,043.21/15,219.14 = 8,206.09/x
  3. Step 3: Cross multiply
    11,043.21x = 15,219.14 × 8,206.09
  4. Step 4: Simplify right side
    11,043.21x = 124,889,556.47
  5. Step 5: Solve for x
    x = 124,889,556.47/11,043.21
  6. Step 6: Final answer
    x = 11,309.17

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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.