Home / 11,391.40-17,087.10-10,516.60

Finding the Fourth Proportional to 11,391.40, 17,087.10 and 10,516.60

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Solution

The fourth proportional to 11,391.40, 17,087.10 and 10,516.60 is: 15,774.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,391.40 : 17,087.10 = 10,516.60 : x
  2. Step 2: Convert to fraction form
    11,391.40/17,087.10 = 10,516.60/x
  3. Step 3: Cross multiply
    11,391.40x = 17,087.10 × 10,516.60
  4. Step 4: Simplify right side
    11,391.40x = 179,698,195.86
  5. Step 5: Solve for x
    x = 179,698,195.86/11,391.40
  6. Step 6: Final answer
    x = 15,774.90

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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.