Home / 13,895.71-20,847.46-5,581.56

Finding the Fourth Proportional to 13,895.71, 20,847.46 and 5,581.56

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Solution

The fourth proportional to 13,895.71, 20,847.46 and 5,581.56 is: 8,373.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,895.71 : 20,847.46 = 5,581.56 : x
  2. Step 2: Convert to fraction form
    13,895.71/20,847.46 = 5,581.56/x
  3. Step 3: Cross multiply
    13,895.71x = 20,847.46 × 5,581.56
  4. Step 4: Simplify right side
    13,895.71x = 116,361,348.84
  5. Step 5: Solve for x
    x = 116,361,348.84/13,895.71
  6. Step 6: Final answer
    x = 8,373.90

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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.