Home / 12,577.95-18,866.93-3,812.86

Finding the Fourth Proportional to 12,577.95, 18,866.93 and 3,812.86

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Solution

The fourth proportional to 12,577.95, 18,866.93 and 3,812.86 is: 5,719.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.95 : 18,866.93 = 3,812.86 : x
  2. Step 2: Convert to fraction form
    12,577.95/18,866.93 = 3,812.86/x
  3. Step 3: Cross multiply
    12,577.95x = 18,866.93 × 3,812.86
  4. Step 4: Simplify right side
    12,577.95x = 71,936,967.24
  5. Step 5: Solve for x
    x = 71,936,967.24/12,577.95
  6. Step 6: Final answer
    x = 5,719.29

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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.