Home / 12,707.28-19,075.23-6,474.36

Finding the Fourth Proportional to 12,707.28, 19,075.23 and 6,474.36

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Solution

The fourth proportional to 12,707.28, 19,075.23 and 6,474.36 is: 9,718.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.28 : 19,075.23 = 6,474.36 : x
  2. Step 2: Convert to fraction form
    12,707.28/19,075.23 = 6,474.36/x
  3. Step 3: Cross multiply
    12,707.28x = 19,075.23 × 6,474.36
  4. Step 4: Simplify right side
    12,707.28x = 123,499,906.10
  5. Step 5: Solve for x
    x = 123,499,906.10/12,707.28
  6. Step 6: Final answer
    x = 9,718.83

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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.