Home / 11,219.82-15,480.63-6,747

Finding the Fourth Proportional to 11,219.82, 15,480.63 and 6,747

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Solution

The fourth proportional to 11,219.82, 15,480.63 and 6,747 is: 9,309.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.82 : 15,480.63 = 6,747 : x
  2. Step 2: Convert to fraction form
    11,219.82/15,480.63 = 6,747/x
  3. Step 3: Cross multiply
    11,219.82x = 15,480.63 × 6,747
  4. Step 4: Simplify right side
    11,219.82x = 104,447,810.61
  5. Step 5: Solve for x
    x = 104,447,810.61/11,219.82
  6. Step 6: Final answer
    x = 9,309.22

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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.