Home / 11,584.32-15,986.72-6,615.36

Finding the Fourth Proportional to 11,584.32, 15,986.72 and 6,615.36

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Solution

The fourth proportional to 11,584.32, 15,986.72 and 6,615.36 is: 9,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,584.32 : 15,986.72 = 6,615.36 : x
  2. Step 2: Convert to fraction form
    11,584.32/15,986.72 = 6,615.36/x
  3. Step 3: Cross multiply
    11,584.32x = 15,986.72 × 6,615.36
  4. Step 4: Simplify right side
    11,584.32x = 105,757,908.02
  5. Step 5: Solve for x
    x = 105,757,908.02/11,584.32
  6. Step 6: Final answer
    x = 9,129.40

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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.