Home / 11,011.21-16,515.09-3,615.60

Finding the Fourth Proportional to 11,011.21, 16,515.09 and 3,615.60

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Solution

The fourth proportional to 11,011.21, 16,515.09 and 3,615.60 is: 5,422.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,011.21 : 16,515.09 = 3,615.60 : x
  2. Step 2: Convert to fraction form
    11,011.21/16,515.09 = 3,615.60/x
  3. Step 3: Cross multiply
    11,011.21x = 16,515.09 × 3,615.60
  4. Step 4: Simplify right side
    11,011.21x = 59,712,021.34
  5. Step 5: Solve for x
    x = 59,712,021.34/11,011.21
  6. Step 6: Final answer
    x = 5,422.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.