Home / 12,577.76-18,866.96-3,812.64

Finding the Fourth Proportional to 12,577.76, 18,866.96 and 3,812.64

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Solution

The fourth proportional to 12,577.76, 18,866.96 and 3,812.64 is: 5,719.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.76 : 18,866.96 = 3,812.64 : x
  2. Step 2: Convert to fraction form
    12,577.76/18,866.96 = 3,812.64/x
  3. Step 3: Cross multiply
    12,577.76x = 18,866.96 × 3,812.64
  4. Step 4: Simplify right side
    12,577.76x = 71,932,926.37
  5. Step 5: Solve for x
    x = 71,932,926.37/12,577.76
  6. Step 6: Final answer
    x = 5,719.06

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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.