Home / 8,720.58-13,072.50-5,591.82

Finding the Fourth Proportional to 8,720.58, 13,072.50 and 5,591.82

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Solution

The fourth proportional to 8,720.58, 13,072.50 and 5,591.82 is: 8,382.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.58 : 13,072.50 = 5,591.82 : x
  2. Step 2: Convert to fraction form
    8,720.58/13,072.50 = 5,591.82/x
  3. Step 3: Cross multiply
    8,720.58x = 13,072.50 × 5,591.82
  4. Step 4: Simplify right side
    8,720.58x = 73,099,066.95
  5. Step 5: Solve for x
    x = 73,099,066.95/8,720.58
  6. Step 6: Final answer
    x = 8,382.36

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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.