Home / 11,278.88-16,822.95-10,628.44

Finding the Fourth Proportional to 11,278.88, 16,822.95 and 10,628.44

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Solution

The fourth proportional to 11,278.88, 16,822.95 and 10,628.44 is: 15,852.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.88 : 16,822.95 = 10,628.44 : x
  2. Step 2: Convert to fraction form
    11,278.88/16,822.95 = 10,628.44/x
  3. Step 3: Cross multiply
    11,278.88x = 16,822.95 × 10,628.44
  4. Step 4: Simplify right side
    11,278.88x = 178,801,714.70
  5. Step 5: Solve for x
    x = 178,801,714.70/11,278.88
  6. Step 6: Final answer
    x = 15,852.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.