Home / 11,004.20-16,469.85-10,129.40

Finding the Fourth Proportional to 11,004.20, 16,469.85 and 10,129.40

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Solution

The fourth proportional to 11,004.20, 16,469.85 and 10,129.40 is: 15,160.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,004.20 : 16,469.85 = 10,129.40 : x
  2. Step 2: Convert to fraction form
    11,004.20/16,469.85 = 10,129.40/x
  3. Step 3: Cross multiply
    11,004.20x = 16,469.85 × 10,129.40
  4. Step 4: Simplify right side
    11,004.20x = 166,829,698.59
  5. Step 5: Solve for x
    x = 166,829,698.59/11,004.20
  6. Step 6: Final answer
    x = 15,160.55

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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.