Home / 13,346.28-20,029.68-12,661.08

Finding the Fourth Proportional to 13,346.28, 20,029.68 and 12,661.08

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Solution

The fourth proportional to 13,346.28, 20,029.68 and 12,661.08 is: 19,001.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.28 : 20,029.68 = 12,661.08 : x
  2. Step 2: Convert to fraction form
    13,346.28/20,029.68 = 12,661.08/x
  3. Step 3: Cross multiply
    13,346.28x = 20,029.68 × 12,661.08
  4. Step 4: Simplify right side
    13,346.28x = 253,597,380.85
  5. Step 5: Solve for x
    x = 253,597,380.85/13,346.28
  6. Step 6: Final answer
    x = 19,001.35

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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.