Home / 12,628.30-18,945.16-3,862.92

Finding the Fourth Proportional to 12,628.30, 18,945.16 and 3,862.92

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Solution

The fourth proportional to 12,628.30, 18,945.16 and 3,862.92 is: 5,795.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.30 : 18,945.16 = 3,862.92 : x
  2. Step 2: Convert to fraction form
    12,628.30/18,945.16 = 3,862.92/x
  3. Step 3: Cross multiply
    12,628.30x = 18,945.16 × 3,862.92
  4. Step 4: Simplify right side
    12,628.30x = 73,183,637.47
  5. Step 5: Solve for x
    x = 73,183,637.47/12,628.30
  6. Step 6: Final answer
    x = 5,795.21

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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.