Home / 12,157.92-18,236.85-4,757.19

Finding the Fourth Proportional to 12,157.92, 18,236.85 and 4,757.19

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Solution

The fourth proportional to 12,157.92, 18,236.85 and 4,757.19 is: 7,135.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.92 : 18,236.85 = 4,757.19 : x
  2. Step 2: Convert to fraction form
    12,157.92/18,236.85 = 4,757.19/x
  3. Step 3: Cross multiply
    12,157.92x = 18,236.85 × 4,757.19
  4. Step 4: Simplify right side
    12,157.92x = 86,756,160.45
  5. Step 5: Solve for x
    x = 86,756,160.45/12,157.92
  6. Step 6: Final answer
    x = 7,135.77

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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.