Home / 13,674.42-20,507.58-3,811.32

Finding the Fourth Proportional to 13,674.42, 20,507.58 and 3,811.32

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Solution

The fourth proportional to 13,674.42, 20,507.58 and 3,811.32 is: 5,715.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.42 : 20,507.58 = 3,811.32 : x
  2. Step 2: Convert to fraction form
    13,674.42/20,507.58 = 3,811.32/x
  3. Step 3: Cross multiply
    13,674.42x = 20,507.58 × 3,811.32
  4. Step 4: Simplify right side
    13,674.42x = 78,160,949.81
  5. Step 5: Solve for x
    x = 78,160,949.81/13,674.42
  6. Step 6: Final answer
    x = 5,715.85

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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.