Home / 13,172.05-19,765.86-4,857.87

Finding the Fourth Proportional to 13,172.05, 19,765.86 and 4,857.87

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Solution

The fourth proportional to 13,172.05, 19,765.86 and 4,857.87 is: 7,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.05 : 19,765.86 = 4,857.87 : x
  2. Step 2: Convert to fraction form
    13,172.05/19,765.86 = 4,857.87/x
  3. Step 3: Cross multiply
    13,172.05x = 19,765.86 × 4,857.87
  4. Step 4: Simplify right side
    13,172.05x = 96,020,034.22
  5. Step 5: Solve for x
    x = 96,020,034.22/13,172.05
  6. Step 6: Final answer
    x = 7,289.68

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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.