Home / 14,935.88-20,610.99-8,221.46

Finding the Fourth Proportional to 14,935.88, 20,610.99 and 8,221.46

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Solution

The fourth proportional to 14,935.88, 20,610.99 and 8,221.46 is: 11,345.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,935.88 : 20,610.99 = 8,221.46 : x
  2. Step 2: Convert to fraction form
    14,935.88/20,610.99 = 8,221.46/x
  3. Step 3: Cross multiply
    14,935.88x = 20,610.99 × 8,221.46
  4. Step 4: Simplify right side
    14,935.88x = 169,452,429.85
  5. Step 5: Solve for x
    x = 169,452,429.85/14,935.88
  6. Step 6: Final answer
    x = 11,345.33

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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.