Home / 16,428.68-22,647.84-13,072.88

Finding the Fourth Proportional to 16,428.68, 22,647.84 and 13,072.88

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Solution

The fourth proportional to 16,428.68, 22,647.84 and 13,072.88 is: 18,021.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,428.68 : 22,647.84 = 13,072.88 : x
  2. Step 2: Convert to fraction form
    16,428.68/22,647.84 = 13,072.88/x
  3. Step 3: Cross multiply
    16,428.68x = 22,647.84 × 13,072.88
  4. Step 4: Simplify right side
    16,428.68x = 296,072,494.58
  5. Step 5: Solve for x
    x = 296,072,494.58/16,428.68
  6. Step 6: Final answer
    x = 18,021.68

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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.