Home / 12,944.55-19,416.85-3,938.74

Finding the Fourth Proportional to 12,944.55, 19,416.85 and 3,938.74

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Solution

The fourth proportional to 12,944.55, 19,416.85 and 3,938.74 is: 5,908.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,944.55 : 19,416.85 = 3,938.74 : x
  2. Step 2: Convert to fraction form
    12,944.55/19,416.85 = 3,938.74/x
  3. Step 3: Cross multiply
    12,944.55x = 19,416.85 × 3,938.74
  4. Step 4: Simplify right side
    12,944.55x = 76,477,923.77
  5. Step 5: Solve for x
    x = 76,477,923.77/12,944.55
  6. Step 6: Final answer
    x = 5,908.12

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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.