Home / 12,283.38-18,426.90-3,960.66

Finding the Fourth Proportional to 12,283.38, 18,426.90 and 3,960.66

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Solution

The fourth proportional to 12,283.38, 18,426.90 and 3,960.66 is: 5,941.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,283.38 : 18,426.90 = 3,960.66 : x
  2. Step 2: Convert to fraction form
    12,283.38/18,426.90 = 3,960.66/x
  3. Step 3: Cross multiply
    12,283.38x = 18,426.90 × 3,960.66
  4. Step 4: Simplify right side
    12,283.38x = 72,982,685.75
  5. Step 5: Solve for x
    x = 72,982,685.75/12,283.38
  6. Step 6: Final answer
    x = 5,941.58

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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.