Home / 11,278.80-16,918.80-5,734.80

Finding the Fourth Proportional to 11,278.80, 16,918.80 and 5,734.80

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Solution

The fourth proportional to 11,278.80, 16,918.80 and 5,734.80 is: 8,602.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.80 : 16,918.80 = 5,734.80 : x
  2. Step 2: Convert to fraction form
    11,278.80/16,918.80 = 5,734.80/x
  3. Step 3: Cross multiply
    11,278.80x = 16,918.80 × 5,734.80
  4. Step 4: Simplify right side
    11,278.80x = 97,025,934.24
  5. Step 5: Solve for x
    x = 97,025,934.24/11,278.80
  6. Step 6: Final answer
    x = 8,602.51

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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.