Home / 10,780.63-16,170.86-2,775.38

Finding the Fourth Proportional to 10,780.63, 16,170.86 and 2,775.38

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Solution

The fourth proportional to 10,780.63, 16,170.86 and 2,775.38 is: 4,163.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780.63 : 16,170.86 = 2,775.38 : x
  2. Step 2: Convert to fraction form
    10,780.63/16,170.86 = 2,775.38/x
  3. Step 3: Cross multiply
    10,780.63x = 16,170.86 × 2,775.38
  4. Step 4: Simplify right side
    10,780.63x = 44,880,207.51
  5. Step 5: Solve for x
    x = 44,880,207.51/10,780.63
  6. Step 6: Final answer
    x = 4,163.04

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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.