Home / 11,520.64-17,304.72-7,584.16

Finding the Fourth Proportional to 11,520.64, 17,304.72 and 7,584.16

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Solution

The fourth proportional to 11,520.64, 17,304.72 and 7,584.16 is: 11,391.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.64 : 17,304.72 = 7,584.16 : x
  2. Step 2: Convert to fraction form
    11,520.64/17,304.72 = 7,584.16/x
  3. Step 3: Cross multiply
    11,520.64x = 17,304.72 × 7,584.16
  4. Step 4: Simplify right side
    11,520.64x = 131,241,765.24
  5. Step 5: Solve for x
    x = 131,241,765.24/11,520.64
  6. Step 6: Final answer
    x = 11,391.88

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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.