Home / 10,914.64-16,371.96-3,123.48

Finding the Fourth Proportional to 10,914.64, 16,371.96 and 3,123.48

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Solution

The fourth proportional to 10,914.64, 16,371.96 and 3,123.48 is: 4,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,914.64 : 16,371.96 = 3,123.48 : x
  2. Step 2: Convert to fraction form
    10,914.64/16,371.96 = 3,123.48/x
  3. Step 3: Cross multiply
    10,914.64x = 16,371.96 × 3,123.48
  4. Step 4: Simplify right side
    10,914.64x = 51,137,489.62
  5. Step 5: Solve for x
    x = 51,137,489.62/10,914.64
  6. Step 6: Final answer
    x = 4,685.22

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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.