Home / 13,460.67-20,195.06-5,140.89

Finding the Fourth Proportional to 13,460.67, 20,195.06 and 5,140.89

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Solution

The fourth proportional to 13,460.67, 20,195.06 and 5,140.89 is: 7,712.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,460.67 : 20,195.06 = 5,140.89 : x
  2. Step 2: Convert to fraction form
    13,460.67/20,195.06 = 5,140.89/x
  3. Step 3: Cross multiply
    13,460.67x = 20,195.06 × 5,140.89
  4. Step 4: Simplify right side
    13,460.67x = 103,820,556.30
  5. Step 5: Solve for x
    x = 103,820,556.30/13,460.67
  6. Step 6: Final answer
    x = 7,712.88

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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.