Home / 16,028.13-22,121.64-9,315.84

Finding the Fourth Proportional to 16,028.13, 22,121.64 and 9,315.84

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Solution

The fourth proportional to 16,028.13, 22,121.64 and 9,315.84 is: 12,857.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,028.13 : 22,121.64 = 9,315.84 : x
  2. Step 2: Convert to fraction form
    16,028.13/22,121.64 = 9,315.84/x
  3. Step 3: Cross multiply
    16,028.13x = 22,121.64 × 9,315.84
  4. Step 4: Simplify right side
    16,028.13x = 206,081,658.78
  5. Step 5: Solve for x
    x = 206,081,658.78/16,028.13
  6. Step 6: Final answer
    x = 12,857.50

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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.