Home / 8,736.18-13,099.95-3,189.30

Finding the Fourth Proportional to 8,736.18, 13,099.95 and 3,189.30

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Solution

The fourth proportional to 8,736.18, 13,099.95 and 3,189.30 is: 4,782.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.18 : 13,099.95 = 3,189.30 : x
  2. Step 2: Convert to fraction form
    8,736.18/13,099.95 = 3,189.30/x
  3. Step 3: Cross multiply
    8,736.18x = 13,099.95 × 3,189.30
  4. Step 4: Simplify right side
    8,736.18x = 41,779,670.54
  5. Step 5: Solve for x
    x = 41,779,670.54/8,736.18
  6. Step 6: Final answer
    x = 4,782.37

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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.