Home / 11,214.54-16,821.80-5,290.05

Finding the Fourth Proportional to 11,214.54, 16,821.80 and 5,290.05

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Solution

The fourth proportional to 11,214.54, 16,821.80 and 5,290.05 is: 7,935.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,214.54 : 16,821.80 = 5,290.05 : x
  2. Step 2: Convert to fraction form
    11,214.54/16,821.80 = 5,290.05/x
  3. Step 3: Cross multiply
    11,214.54x = 16,821.80 × 5,290.05
  4. Step 4: Simplify right side
    11,214.54x = 88,988,163.09
  5. Step 5: Solve for x
    x = 88,988,163.09/11,214.54
  6. Step 6: Final answer
    x = 7,935.07

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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.