Home / 10,905.63-16,359.24-3,115.05

Finding the Fourth Proportional to 10,905.63, 16,359.24 and 3,115.05

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Solution

The fourth proportional to 10,905.63, 16,359.24 and 3,115.05 is: 4,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.63 : 16,359.24 = 3,115.05 : x
  2. Step 2: Convert to fraction form
    10,905.63/16,359.24 = 3,115.05/x
  3. Step 3: Cross multiply
    10,905.63x = 16,359.24 × 3,115.05
  4. Step 4: Simplify right side
    10,905.63x = 50,959,850.56
  5. Step 5: Solve for x
    x = 50,959,850.56/10,905.63
  6. Step 6: Final answer
    x = 4,672.80

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1.5x scale

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.