Home / 12,221.04-16,858.94-8,448.06

Finding the Fourth Proportional to 12,221.04, 16,858.94 and 8,448.06

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Solution

The fourth proportional to 12,221.04, 16,858.94 and 8,448.06 is: 11,654.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221.04 : 16,858.94 = 8,448.06 : x
  2. Step 2: Convert to fraction form
    12,221.04/16,858.94 = 8,448.06/x
  3. Step 3: Cross multiply
    12,221.04x = 16,858.94 × 8,448.06
  4. Step 4: Simplify right side
    12,221.04x = 142,425,336.66
  5. Step 5: Solve for x
    x = 142,425,336.66/12,221.04
  6. Step 6: Final answer
    x = 11,654.11

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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.