Home / 12,204.21-16,841.85-6,615.21

Finding the Fourth Proportional to 12,204.21, 16,841.85 and 6,615.21

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Solution

The fourth proportional to 12,204.21, 16,841.85 and 6,615.21 is: 9,129.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,204.21 : 16,841.85 = 6,615.21 : x
  2. Step 2: Convert to fraction form
    12,204.21/16,841.85 = 6,615.21/x
  3. Step 3: Cross multiply
    12,204.21x = 16,841.85 × 6,615.21
  4. Step 4: Simplify right side
    12,204.21x = 111,412,374.54
  5. Step 5: Solve for x
    x = 111,412,374.54/12,204.21
  6. Step 6: Final answer
    x = 9,129.01

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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.