Home / 13,785.96-20,679.24-3,925.55

Finding the Fourth Proportional to 13,785.96, 20,679.24 and 3,925.55

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Solution

The fourth proportional to 13,785.96, 20,679.24 and 3,925.55 is: 5,888.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.96 : 20,679.24 = 3,925.55 : x
  2. Step 2: Convert to fraction form
    13,785.96/20,679.24 = 3,925.55/x
  3. Step 3: Cross multiply
    13,785.96x = 20,679.24 × 3,925.55
  4. Step 4: Simplify right side
    13,785.96x = 81,177,390.58
  5. Step 5: Solve for x
    x = 81,177,390.58/13,785.96
  6. Step 6: Final answer
    x = 5,888.41

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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.