Home / 13,211.23-19,810.37-6,540.02

Finding the Fourth Proportional to 13,211.23, 19,810.37 and 6,540.02

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Solution

The fourth proportional to 13,211.23, 19,810.37 and 6,540.02 is: 9,806.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211.23 : 19,810.37 = 6,540.02 : x
  2. Step 2: Convert to fraction form
    13,211.23/19,810.37 = 6,540.02/x
  3. Step 3: Cross multiply
    13,211.23x = 19,810.37 × 6,540.02
  4. Step 4: Simplify right side
    13,211.23x = 129,560,216.01
  5. Step 5: Solve for x
    x = 129,560,216.01/13,211.23
  6. Step 6: Final answer
    x = 9,806.82

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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.