Home / 13,930.67-20,895.80-5,610.47

Finding the Fourth Proportional to 13,930.67, 20,895.80 and 5,610.47

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Solution

The fourth proportional to 13,930.67, 20,895.80 and 5,610.47 is: 8,415.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.67 : 20,895.80 = 5,610.47 : x
  2. Step 2: Convert to fraction form
    13,930.67/20,895.80 = 5,610.47/x
  3. Step 3: Cross multiply
    13,930.67x = 20,895.80 × 5,610.47
  4. Step 4: Simplify right side
    13,930.67x = 117,235,259.03
  5. Step 5: Solve for x
    x = 117,235,259.03/13,930.67
  6. Step 6: Final answer
    x = 8,415.62

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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.