Home / 11,278.84-16,919.86-3,488.26

Finding the Fourth Proportional to 11,278.84, 16,919.86 and 3,488.26

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Solution

The fourth proportional to 11,278.84, 16,919.86 and 3,488.26 is: 5,232.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.84 : 16,919.86 = 3,488.26 : x
  2. Step 2: Convert to fraction form
    11,278.84/16,919.86 = 3,488.26/x
  3. Step 3: Cross multiply
    11,278.84x = 16,919.86 × 3,488.26
  4. Step 4: Simplify right side
    11,278.84x = 59,020,870.84
  5. Step 5: Solve for x
    x = 59,020,870.84/11,278.84
  6. Step 6: Final answer
    x = 5,232.88

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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.