Home / 11,490.88-17,238.24-4,571.20

Finding the Fourth Proportional to 11,490.88, 17,238.24 and 4,571.20

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Solution

The fourth proportional to 11,490.88, 17,238.24 and 4,571.20 is: 6,857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,490.88 : 17,238.24 = 4,571.20 : x
  2. Step 2: Convert to fraction form
    11,490.88/17,238.24 = 4,571.20/x
  3. Step 3: Cross multiply
    11,490.88x = 17,238.24 × 4,571.20
  4. Step 4: Simplify right side
    11,490.88x = 78,799,442.69
  5. Step 5: Solve for x
    x = 78,799,442.69/11,490.88
  6. Step 6: Final answer
    x = 6,857.56

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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.