Home / 13,811.60-20,718.41-5,906.40

Finding the Fourth Proportional to 13,811.60, 20,718.41 and 5,906.40

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Solution

The fourth proportional to 13,811.60, 20,718.41 and 5,906.40 is: 8,860.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.60 : 20,718.41 = 5,906.40 : x
  2. Step 2: Convert to fraction form
    13,811.60/20,718.41 = 5,906.40/x
  3. Step 3: Cross multiply
    13,811.60x = 20,718.41 × 5,906.40
  4. Step 4: Simplify right side
    13,811.60x = 122,371,216.82
  5. Step 5: Solve for x
    x = 122,371,216.82/13,811.60
  6. Step 6: Final answer
    x = 8,860.03

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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.