Home / 13,770.06-19,007.16-8,104.50

Finding the Fourth Proportional to 13,770.06, 19,007.16 and 8,104.50

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Solution

The fourth proportional to 13,770.06, 19,007.16 and 8,104.50 is: 11,186.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.06 : 19,007.16 = 8,104.50 : x
  2. Step 2: Convert to fraction form
    13,770.06/19,007.16 = 8,104.50/x
  3. Step 3: Cross multiply
    13,770.06x = 19,007.16 × 8,104.50
  4. Step 4: Simplify right side
    13,770.06x = 154,043,528.22
  5. Step 5: Solve for x
    x = 154,043,528.22/13,770.06
  6. Step 6: Final answer
    x = 11,186.85

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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.