Home / 13,384.20-20,076.30-12,873.90

Finding the Fourth Proportional to 13,384.20, 20,076.30 and 12,873.90

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Solution

The fourth proportional to 13,384.20, 20,076.30 and 12,873.90 is: 19,310.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.20 : 20,076.30 = 12,873.90 : x
  2. Step 2: Convert to fraction form
    13,384.20/20,076.30 = 12,873.90/x
  3. Step 3: Cross multiply
    13,384.20x = 20,076.30 × 12,873.90
  4. Step 4: Simplify right side
    13,384.20x = 258,460,278.57
  5. Step 5: Solve for x
    x = 258,460,278.57/13,384.20
  6. Step 6: Final answer
    x = 19,310.85

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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.