Home / 13,769.06-19,005.78-8,103.50

Finding the Fourth Proportional to 13,769.06, 19,005.78 and 8,103.50

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Solution

The fourth proportional to 13,769.06, 19,005.78 and 8,103.50 is: 11,185.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.06 : 19,005.78 = 8,103.50 : x
  2. Step 2: Convert to fraction form
    13,769.06/19,005.78 = 8,103.50/x
  3. Step 3: Cross multiply
    13,769.06x = 19,005.78 × 8,103.50
  4. Step 4: Simplify right side
    13,769.06x = 154,013,338.23
  5. Step 5: Solve for x
    x = 154,013,338.23/13,769.06
  6. Step 6: Final answer
    x = 11,185.46

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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.