Home / 11,316.12-16,949.58-6,920.28

Finding the Fourth Proportional to 11,316.12, 16,949.58 and 6,920.28

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Solution

The fourth proportional to 11,316.12, 16,949.58 and 6,920.28 is: 10,365.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.12 : 16,949.58 = 6,920.28 : x
  2. Step 2: Convert to fraction form
    11,316.12/16,949.58 = 6,920.28/x
  3. Step 3: Cross multiply
    11,316.12x = 16,949.58 × 6,920.28
  4. Step 4: Simplify right side
    11,316.12x = 117,295,839.48
  5. Step 5: Solve for x
    x = 117,295,839.48/11,316.12
  6. Step 6: Final answer
    x = 10,365.38

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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.