Home / 18,700.11-28,049.94-10,814.49

Finding the Fourth Proportional to 18,700.11, 28,049.94 and 10,814.49

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Solution

The fourth proportional to 18,700.11, 28,049.94 and 10,814.49 is: 16,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700.11 : 28,049.94 = 10,814.49 : x
  2. Step 2: Convert to fraction form
    18,700.11/28,049.94 = 10,814.49/x
  3. Step 3: Cross multiply
    18,700.11x = 28,049.94 × 10,814.49
  4. Step 4: Simplify right side
    18,700.11x = 303,345,795.63
  5. Step 5: Solve for x
    x = 303,345,795.63/18,700.11
  6. Step 6: Final answer
    x = 16,221.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.