Home / 13,780.51-20,672.21-5,883.82

Finding the Fourth Proportional to 13,780.51, 20,672.21 and 5,883.82

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Solution

The fourth proportional to 13,780.51, 20,672.21 and 5,883.82 is: 8,826.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780.51 : 20,672.21 = 5,883.82 : x
  2. Step 2: Convert to fraction form
    13,780.51/20,672.21 = 5,883.82/x
  3. Step 3: Cross multiply
    13,780.51x = 20,672.21 × 5,883.82
  4. Step 4: Simplify right side
    13,780.51x = 121,631,562.64
  5. Step 5: Solve for x
    x = 121,631,562.64/13,780.51
  6. Step 6: Final answer
    x = 8,826.35

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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.