Home / 12,195.04-18,288.88-3,874.72

Finding the Fourth Proportional to 12,195.04, 18,288.88 and 3,874.72

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Solution

The fourth proportional to 12,195.04, 18,288.88 and 3,874.72 is: 5,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.04 : 18,288.88 = 3,874.72 : x
  2. Step 2: Convert to fraction form
    12,195.04/18,288.88 = 3,874.72/x
  3. Step 3: Cross multiply
    12,195.04x = 18,288.88 × 3,874.72
  4. Step 4: Simplify right side
    12,195.04x = 70,864,289.11
  5. Step 5: Solve for x
    x = 70,864,289.11/12,195.04
  6. Step 6: Final answer
    x = 5,810.91

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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.