Home / 12,435.54-18,655.13-3,669.31

Finding the Fourth Proportional to 12,435.54, 18,655.13 and 3,669.31

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Solution

The fourth proportional to 12,435.54, 18,655.13 and 3,669.31 is: 5,504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.54 : 18,655.13 = 3,669.31 : x
  2. Step 2: Convert to fraction form
    12,435.54/18,655.13 = 3,669.31/x
  3. Step 3: Cross multiply
    12,435.54x = 18,655.13 × 3,669.31
  4. Step 4: Simplify right side
    12,435.54x = 68,451,455.06
  5. Step 5: Solve for x
    x = 68,451,455.06/12,435.54
  6. Step 6: Final answer
    x = 5,504.50

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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.