Home / 11,160.32-15,396.89-6,684.26

Finding the Fourth Proportional to 11,160.32, 15,396.89 and 6,684.26

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Solution

The fourth proportional to 11,160.32, 15,396.89 and 6,684.26 is: 9,221.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,160.32 : 15,396.89 = 6,684.26 : x
  2. Step 2: Convert to fraction form
    11,160.32/15,396.89 = 6,684.26/x
  3. Step 3: Cross multiply
    11,160.32x = 15,396.89 × 6,684.26
  4. Step 4: Simplify right side
    11,160.32x = 102,916,705.55
  5. Step 5: Solve for x
    x = 102,916,705.55/11,160.32
  6. Step 6: Final answer
    x = 9,221.67

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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.