Home / 10,611.95-15,918.73-2,820.56

Finding the Fourth Proportional to 10,611.95, 15,918.73 and 2,820.56

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Solution

The fourth proportional to 10,611.95, 15,918.73 and 2,820.56 is: 4,231.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.95 : 15,918.73 = 2,820.56 : x
  2. Step 2: Convert to fraction form
    10,611.95/15,918.73 = 2,820.56/x
  3. Step 3: Cross multiply
    10,611.95x = 15,918.73 × 2,820.56
  4. Step 4: Simplify right side
    10,611.95x = 44,899,646.44
  5. Step 5: Solve for x
    x = 44,899,646.44/10,611.95
  6. Step 6: Final answer
    x = 4,231.05

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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.