Home / 11,180.70-15,405.03-8,346.96

Finding the Fourth Proportional to 11,180.70, 15,405.03 and 8,346.96

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Solution

The fourth proportional to 11,180.70, 15,405.03 and 8,346.96 is: 11,500.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.70 : 15,405.03 = 8,346.96 : x
  2. Step 2: Convert to fraction form
    11,180.70/15,405.03 = 8,346.96/x
  3. Step 3: Cross multiply
    11,180.70x = 15,405.03 × 8,346.96
  4. Step 4: Simplify right side
    11,180.70x = 128,585,169.21
  5. Step 5: Solve for x
    x = 128,585,169.21/11,180.70
  6. Step 6: Final answer
    x = 11,500.64

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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.