Home / 13,861.60-20,794.13-5,427.02

Finding the Fourth Proportional to 13,861.60, 20,794.13 and 5,427.02

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Solution

The fourth proportional to 13,861.60, 20,794.13 and 5,427.02 is: 8,141.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.60 : 20,794.13 = 5,427.02 : x
  2. Step 2: Convert to fraction form
    13,861.60/20,794.13 = 5,427.02/x
  3. Step 3: Cross multiply
    13,861.60x = 20,794.13 × 5,427.02
  4. Step 4: Simplify right side
    13,861.60x = 112,850,102.89
  5. Step 5: Solve for x
    x = 112,850,102.89/13,861.60
  6. Step 6: Final answer
    x = 8,141.20

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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.