Home / 12,212-16,852.56-6,623.04

Finding the Fourth Proportional to 12,212, 16,852.56 and 6,623.04

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Solution

The fourth proportional to 12,212, 16,852.56 and 6,623.04 is: 9,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212 : 16,852.56 = 6,623.04 : x
  2. Step 2: Convert to fraction form
    12,212/16,852.56 = 6,623.04/x
  3. Step 3: Cross multiply
    12,212x = 16,852.56 × 6,623.04
  4. Step 4: Simplify right side
    12,212x = 111,615,178.98
  5. Step 5: Solve for x
    x = 111,615,178.98/12,212
  6. Step 6: Final answer
    x = 9,139.80

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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.