Home / 15,076.15-20,799.49-9,105.64

Finding the Fourth Proportional to 15,076.15, 20,799.49 and 9,105.64

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Solution

The fourth proportional to 15,076.15, 20,799.49 and 9,105.64 is: 12,562.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,076.15 : 20,799.49 = 9,105.64 : x
  2. Step 2: Convert to fraction form
    15,076.15/20,799.49 = 9,105.64/x
  3. Step 3: Cross multiply
    15,076.15x = 20,799.49 × 9,105.64
  4. Step 4: Simplify right side
    15,076.15x = 189,392,668.12
  5. Step 5: Solve for x
    x = 189,392,668.12/15,076.15
  6. Step 6: Final answer
    x = 12,562.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.