Home / 14,415.76-21,629.36-5,182.48

Finding the Fourth Proportional to 14,415.76, 21,629.36 and 5,182.48

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Solution

The fourth proportional to 14,415.76, 21,629.36 and 5,182.48 is: 7,775.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,415.76 : 21,629.36 = 5,182.48 : x
  2. Step 2: Convert to fraction form
    14,415.76/21,629.36 = 5,182.48/x
  3. Step 3: Cross multiply
    14,415.76x = 21,629.36 × 5,182.48
  4. Step 4: Simplify right side
    14,415.76x = 112,093,725.61
  5. Step 5: Solve for x
    x = 112,093,725.61/14,415.76
  6. Step 6: Final answer
    x = 7,775.78

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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.