Home / 11,359.64-15,680.58-6,645.44

Finding the Fourth Proportional to 11,359.64, 15,680.58 and 6,645.44

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Solution

The fourth proportional to 11,359.64, 15,680.58 and 6,645.44 is: 9,173.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,359.64 : 15,680.58 = 6,645.44 : x
  2. Step 2: Convert to fraction form
    11,359.64/15,680.58 = 6,645.44/x
  3. Step 3: Cross multiply
    11,359.64x = 15,680.58 × 6,645.44
  4. Step 4: Simplify right side
    11,359.64x = 104,204,353.56
  5. Step 5: Solve for x
    x = 104,204,353.56/11,359.64
  6. Step 6: Final answer
    x = 9,173.21

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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.