Home / 12,103.43-18,155.03-3,783.51

Finding the Fourth Proportional to 12,103.43, 18,155.03 and 3,783.51

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Solution

The fourth proportional to 12,103.43, 18,155.03 and 3,783.51 is: 5,675.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,103.43 : 18,155.03 = 3,783.51 : x
  2. Step 2: Convert to fraction form
    12,103.43/18,155.03 = 3,783.51/x
  3. Step 3: Cross multiply
    12,103.43x = 18,155.03 × 3,783.51
  4. Step 4: Simplify right side
    12,103.43x = 68,689,718.64
  5. Step 5: Solve for x
    x = 68,689,718.64/12,103.43
  6. Step 6: Final answer
    x = 5,675.23

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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.