Home / 10,642.05-15,961.08-3,144

Finding the Fourth Proportional to 10,642.05, 15,961.08 and 3,144

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Solution

The fourth proportional to 10,642.05, 15,961.08 and 3,144 is: 4,715.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.05 : 15,961.08 = 3,144 : x
  2. Step 2: Convert to fraction form
    10,642.05/15,961.08 = 3,144/x
  3. Step 3: Cross multiply
    10,642.05x = 15,961.08 × 3,144
  4. Step 4: Simplify right side
    10,642.05x = 50,181,635.52
  5. Step 5: Solve for x
    x = 50,181,635.52/10,642.05
  6. Step 6: Final answer
    x = 4,715.41

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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.