Home / 15,966.20-23,892.60-13,908.80

Finding the Fourth Proportional to 15,966.20, 23,892.60 and 13,908.80

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Solution

The fourth proportional to 15,966.20, 23,892.60 and 13,908.80 is: 20,813.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,966.20 : 23,892.60 = 13,908.80 : x
  2. Step 2: Convert to fraction form
    15,966.20/23,892.60 = 13,908.80/x
  3. Step 3: Cross multiply
    15,966.20x = 23,892.60 × 13,908.80
  4. Step 4: Simplify right side
    15,966.20x = 332,317,394.88
  5. Step 5: Solve for x
    x = 332,317,394.88/15,966.20
  6. Step 6: Final answer
    x = 20,813.81

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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.