Home / 12,896.76-19,351.80-5,499.23

Finding the Fourth Proportional to 12,896.76, 19,351.80 and 5,499.23

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Solution

The fourth proportional to 12,896.76, 19,351.80 and 5,499.23 is: 8,251.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,896.76 : 19,351.80 = 5,499.23 : x
  2. Step 2: Convert to fraction form
    12,896.76/19,351.80 = 5,499.23/x
  3. Step 3: Cross multiply
    12,896.76x = 19,351.80 × 5,499.23
  4. Step 4: Simplify right side
    12,896.76x = 106,420,047.49
  5. Step 5: Solve for x
    x = 106,420,047.49/12,896.76
  6. Step 6: Final answer
    x = 8,251.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.