Home / 12,698.28-19,059.84-6,867.36

Finding the Fourth Proportional to 12,698.28, 19,059.84 and 6,867.36

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Solution

The fourth proportional to 12,698.28, 19,059.84 and 6,867.36 is: 10,307.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,698.28 : 19,059.84 = 6,867.36 : x
  2. Step 2: Convert to fraction form
    12,698.28/19,059.84 = 6,867.36/x
  3. Step 3: Cross multiply
    12,698.28x = 19,059.84 × 6,867.36
  4. Step 4: Simplify right side
    12,698.28x = 130,890,782.82
  5. Step 5: Solve for x
    x = 130,890,782.82/12,698.28
  6. Step 6: Final answer
    x = 10,307.76

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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.