Home / 13,159.26-18,163.44-8,124.30

Finding the Fourth Proportional to 13,159.26, 18,163.44 and 8,124.30

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Solution

The fourth proportional to 13,159.26, 18,163.44 and 8,124.30 is: 11,213.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.26 : 18,163.44 = 8,124.30 : x
  2. Step 2: Convert to fraction form
    13,159.26/18,163.44 = 8,124.30/x
  3. Step 3: Cross multiply
    13,159.26x = 18,163.44 × 8,124.30
  4. Step 4: Simplify right side
    13,159.26x = 147,565,235.59
  5. Step 5: Solve for x
    x = 147,565,235.59/13,159.26
  6. Step 6: Final answer
    x = 11,213.79

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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.