Home / 16,122.88-22,259.94-13,145.86

Finding the Fourth Proportional to 16,122.88, 22,259.94 and 13,145.86

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Solution

The fourth proportional to 16,122.88, 22,259.94 and 13,145.86 is: 18,149.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,122.88 : 22,259.94 = 13,145.86 : x
  2. Step 2: Convert to fraction form
    16,122.88/22,259.94 = 13,145.86/x
  3. Step 3: Cross multiply
    16,122.88x = 22,259.94 × 13,145.86
  4. Step 4: Simplify right side
    16,122.88x = 292,626,054.85
  5. Step 5: Solve for x
    x = 292,626,054.85/16,122.88
  6. Step 6: Final answer
    x = 18,149.74

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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.