Home / 13,423.60-20,119.20-6,846.40

Finding the Fourth Proportional to 13,423.60, 20,119.20 and 6,846.40

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Solution

The fourth proportional to 13,423.60, 20,119.20 and 6,846.40 is: 10,261.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.60 : 20,119.20 = 6,846.40 : x
  2. Step 2: Convert to fraction form
    13,423.60/20,119.20 = 6,846.40/x
  3. Step 3: Cross multiply
    13,423.60x = 20,119.20 × 6,846.40
  4. Step 4: Simplify right side
    13,423.60x = 137,744,090.88
  5. Step 5: Solve for x
    x = 137,744,090.88/13,423.60
  6. Step 6: Final answer
    x = 10,261.34

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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.