Home / 11,404.21-15,735.03-6,687.58

Finding the Fourth Proportional to 11,404.21, 15,735.03 and 6,687.58

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Solution

The fourth proportional to 11,404.21, 15,735.03 and 6,687.58 is: 9,227.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,404.21 : 15,735.03 = 6,687.58 : x
  2. Step 2: Convert to fraction form
    11,404.21/15,735.03 = 6,687.58/x
  3. Step 3: Cross multiply
    11,404.21x = 15,735.03 × 6,687.58
  4. Step 4: Simplify right side
    11,404.21x = 105,229,271.93
  5. Step 5: Solve for x
    x = 105,229,271.93/11,404.21
  6. Step 6: Final answer
    x = 9,227.23

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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.