Home / 11,215.06-15,476.04-6,739

Finding the Fourth Proportional to 11,215.06, 15,476.04 and 6,739

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Solution

The fourth proportional to 11,215.06, 15,476.04 and 6,739 is: 9,299.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.06 : 15,476.04 = 6,739 : x
  2. Step 2: Convert to fraction form
    11,215.06/15,476.04 = 6,739/x
  3. Step 3: Cross multiply
    11,215.06x = 15,476.04 × 6,739
  4. Step 4: Simplify right side
    11,215.06x = 104,293,033.56
  5. Step 5: Solve for x
    x = 104,293,033.56/11,215.06
  6. Step 6: Final answer
    x = 9,299.37

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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.