Home / 11,217.21-16,820.29-6,538.39

Finding the Fourth Proportional to 11,217.21, 16,820.29 and 6,538.39

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Solution

The fourth proportional to 11,217.21, 16,820.29 and 6,538.39 is: 9,804.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.21 : 16,820.29 = 6,538.39 : x
  2. Step 2: Convert to fraction form
    11,217.21/16,820.29 = 6,538.39/x
  3. Step 3: Cross multiply
    11,217.21x = 16,820.29 × 6,538.39
  4. Step 4: Simplify right side
    11,217.21x = 109,977,615.93
  5. Step 5: Solve for x
    x = 109,977,615.93/11,217.21
  6. Step 6: Final answer
    x = 9,804.36

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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.