Home / 11,415.56-17,123.76-5,571.99

Finding the Fourth Proportional to 11,415.56, 17,123.76 and 5,571.99

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Solution

The fourth proportional to 11,415.56, 17,123.76 and 5,571.99 is: 8,358.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,415.56 : 17,123.76 = 5,571.99 : x
  2. Step 2: Convert to fraction form
    11,415.56/17,123.76 = 5,571.99/x
  3. Step 3: Cross multiply
    11,415.56x = 17,123.76 × 5,571.99
  4. Step 4: Simplify right side
    11,415.56x = 95,413,419.48
  5. Step 5: Solve for x
    x = 95,413,419.48/11,415.56
  6. Step 6: Final answer
    x = 8,358.19

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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.