Home / 10,805.04-16,208.28-3,409.68

Finding the Fourth Proportional to 10,805.04, 16,208.28 and 3,409.68

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Solution

The fourth proportional to 10,805.04, 16,208.28 and 3,409.68 is: 5,114.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,805.04 : 16,208.28 = 3,409.68 : x
  2. Step 2: Convert to fraction form
    10,805.04/16,208.28 = 3,409.68/x
  3. Step 3: Cross multiply
    10,805.04x = 16,208.28 × 3,409.68
  4. Step 4: Simplify right side
    10,805.04x = 55,265,048.15
  5. Step 5: Solve for x
    x = 55,265,048.15/10,805.04
  6. Step 6: Final answer
    x = 5,114.75

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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.