Home / 13,322.88-18,382.21-7,659.23

Finding the Fourth Proportional to 13,322.88, 18,382.21 and 7,659.23

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Solution

The fourth proportional to 13,322.88, 18,382.21 and 7,659.23 is: 10,567.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.88 : 18,382.21 = 7,659.23 : x
  2. Step 2: Convert to fraction form
    13,322.88/18,382.21 = 7,659.23/x
  3. Step 3: Cross multiply
    13,322.88x = 18,382.21 × 7,659.23
  4. Step 4: Simplify right side
    13,322.88x = 140,793,463.24
  5. Step 5: Solve for x
    x = 140,793,463.24/13,322.88
  6. Step 6: Final answer
    x = 10,567.79

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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.