Home / 11,426.92-17,142.30-3,638.12

Finding the Fourth Proportional to 11,426.92, 17,142.30 and 3,638.12

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Solution

The fourth proportional to 11,426.92, 17,142.30 and 3,638.12 is: 5,457.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,426.92 : 17,142.30 = 3,638.12 : x
  2. Step 2: Convert to fraction form
    11,426.92/17,142.30 = 3,638.12/x
  3. Step 3: Cross multiply
    11,426.92x = 17,142.30 × 3,638.12
  4. Step 4: Simplify right side
    11,426.92x = 62,365,744.48
  5. Step 5: Solve for x
    x = 62,365,744.48/11,426.92
  6. Step 6: Final answer
    x = 5,457.79

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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.