Home / 13,499.26-18,630.60-7,910.26

Finding the Fourth Proportional to 13,499.26, 18,630.60 and 7,910.26

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Solution

The fourth proportional to 13,499.26, 18,630.60 and 7,910.26 is: 10,917.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,499.26 : 18,630.60 = 7,910.26 : x
  2. Step 2: Convert to fraction form
    13,499.26/18,630.60 = 7,910.26/x
  3. Step 3: Cross multiply
    13,499.26x = 18,630.60 × 7,910.26
  4. Step 4: Simplify right side
    13,499.26x = 147,372,889.96
  5. Step 5: Solve for x
    x = 147,372,889.96/13,499.26
  6. Step 6: Final answer
    x = 10,917.11

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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.