Home / 12,435.68-18,647.10-3,669.45

Finding the Fourth Proportional to 12,435.68, 18,647.10 and 3,669.45

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Solution

The fourth proportional to 12,435.68, 18,647.10 and 3,669.45 is: 5,502.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.68 : 18,647.10 = 3,669.45 : x
  2. Step 2: Convert to fraction form
    12,435.68/18,647.10 = 3,669.45/x
  3. Step 3: Cross multiply
    12,435.68x = 18,647.10 × 3,669.45
  4. Step 4: Simplify right side
    12,435.68x = 68,424,601.10
  5. Step 5: Solve for x
    x = 68,424,601.10/12,435.68
  6. Step 6: Final answer
    x = 5,502.28

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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.