Home / 13,212.25-19,811.87-6,541.03

Finding the Fourth Proportional to 13,212.25, 19,811.87 and 6,541.03

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Solution

The fourth proportional to 13,212.25, 19,811.87 and 6,541.03 is: 9,808.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.25 : 19,811.87 = 6,541.03 : x
  2. Step 2: Convert to fraction form
    13,212.25/19,811.87 = 6,541.03/x
  3. Step 3: Cross multiply
    13,212.25x = 19,811.87 × 6,541.03
  4. Step 4: Simplify right side
    13,212.25x = 129,589,978.50
  5. Step 5: Solve for x
    x = 129,589,978.50/13,212.25
  6. Step 6: Final answer
    x = 9,808.32

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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.