Home / 11,629.64-17,439-4,228.88

Finding the Fourth Proportional to 11,629.64, 17,439 and 4,228.88

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Solution

The fourth proportional to 11,629.64, 17,439 and 4,228.88 is: 6,341.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,629.64 : 17,439 = 4,228.88 : x
  2. Step 2: Convert to fraction form
    11,629.64/17,439 = 4,228.88/x
  3. Step 3: Cross multiply
    11,629.64x = 17,439 × 4,228.88
  4. Step 4: Simplify right side
    11,629.64x = 73,747,438.32
  5. Step 5: Solve for x
    x = 73,747,438.32/11,629.64
  6. Step 6: Final answer
    x = 6,341.33

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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.