Home / 12,644.51-18,966.15-3,759.48

Finding the Fourth Proportional to 12,644.51, 18,966.15 and 3,759.48

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Solution

The fourth proportional to 12,644.51, 18,966.15 and 3,759.48 is: 5,639.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644.51 : 18,966.15 = 3,759.48 : x
  2. Step 2: Convert to fraction form
    12,644.51/18,966.15 = 3,759.48/x
  3. Step 3: Cross multiply
    12,644.51x = 18,966.15 × 3,759.48
  4. Step 4: Simplify right side
    12,644.51x = 71,302,861.60
  5. Step 5: Solve for x
    x = 71,302,861.60/12,644.51
  6. Step 6: Final answer
    x = 5,639.04

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1.5x scale

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.