Home / 14,540.45-21,909.61-11,965.70

Finding the Fourth Proportional to 14,540.45, 21,909.61 and 11,965.70

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Solution

The fourth proportional to 14,540.45, 21,909.61 and 11,965.70 is: 18,029.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,540.45 : 21,909.61 = 11,965.70 : x
  2. Step 2: Convert to fraction form
    14,540.45/21,909.61 = 11,965.70/x
  3. Step 3: Cross multiply
    14,540.45x = 21,909.61 × 11,965.70
  4. Step 4: Simplify right side
    14,540.45x = 262,163,820.38
  5. Step 5: Solve for x
    x = 262,163,820.38/14,540.45
  6. Step 6: Final answer
    x = 18,029.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.