Home / 13,427.60-20,141.40-4,659.60

Finding the Fourth Proportional to 13,427.60, 20,141.40 and 4,659.60

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Solution

The fourth proportional to 13,427.60, 20,141.40 and 4,659.60 is: 6,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.60 : 20,141.40 = 4,659.60 : x
  2. Step 2: Convert to fraction form
    13,427.60/20,141.40 = 4,659.60/x
  3. Step 3: Cross multiply
    13,427.60x = 20,141.40 × 4,659.60
  4. Step 4: Simplify right side
    13,427.60x = 93,850,867.44
  5. Step 5: Solve for x
    x = 93,850,867.44/13,427.60
  6. Step 6: Final answer
    x = 6,989.40

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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.