Home / 12,105.05-18,153.92-4,707.75

Finding the Fourth Proportional to 12,105.05, 18,153.92 and 4,707.75

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Solution

The fourth proportional to 12,105.05, 18,153.92 and 4,707.75 is: 7,060.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,105.05 : 18,153.92 = 4,707.75 : x
  2. Step 2: Convert to fraction form
    12,105.05/18,153.92 = 4,707.75/x
  3. Step 3: Cross multiply
    12,105.05x = 18,153.92 × 4,707.75
  4. Step 4: Simplify right side
    12,105.05x = 85,464,043.55
  5. Step 5: Solve for x
    x = 85,464,043.55/12,105.05
  6. Step 6: Final answer
    x = 7,060.20

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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.