Home / 14,866.09-20,515.19-8,151.82

Finding the Fourth Proportional to 14,866.09, 20,515.19 and 8,151.82

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Solution

The fourth proportional to 14,866.09, 20,515.19 and 8,151.82 is: 11,249.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,866.09 : 20,515.19 = 8,151.82 : x
  2. Step 2: Convert to fraction form
    14,866.09/20,515.19 = 8,151.82/x
  3. Step 3: Cross multiply
    14,866.09x = 20,515.19 × 8,151.82
  4. Step 4: Simplify right side
    14,866.09x = 167,236,205.35
  5. Step 5: Solve for x
    x = 167,236,205.35/14,866.09
  6. Step 6: Final answer
    x = 11,249.51

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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.