Home / 12,709.28-19,078.23-6,476.36

Finding the Fourth Proportional to 12,709.28, 19,078.23 and 6,476.36

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Solution

The fourth proportional to 12,709.28, 19,078.23 and 6,476.36 is: 9,721.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709.28 : 19,078.23 = 6,476.36 : x
  2. Step 2: Convert to fraction form
    12,709.28/19,078.23 = 6,476.36/x
  3. Step 3: Cross multiply
    12,709.28x = 19,078.23 × 6,476.36
  4. Step 4: Simplify right side
    12,709.28x = 123,557,485.64
  5. Step 5: Solve for x
    x = 123,557,485.64/12,709.28
  6. Step 6: Final answer
    x = 9,721.83

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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.