Home / 13,190.53-19,779.42-4,874.47

Finding the Fourth Proportional to 13,190.53, 19,779.42 and 4,874.47

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Solution

The fourth proportional to 13,190.53, 19,779.42 and 4,874.47 is: 7,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.53 : 19,779.42 = 4,874.47 : x
  2. Step 2: Convert to fraction form
    13,190.53/19,779.42 = 4,874.47/x
  3. Step 3: Cross multiply
    13,190.53x = 19,779.42 × 4,874.47
  4. Step 4: Simplify right side
    13,190.53x = 96,414,189.41
  5. Step 5: Solve for x
    x = 96,414,189.41/13,190.53
  6. Step 6: Final answer
    x = 7,309.35

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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.