Home / 12,519.94-18,756.80-10,857.82

Finding the Fourth Proportional to 12,519.94, 18,756.80 and 10,857.82

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Solution

The fourth proportional to 12,519.94, 18,756.80 and 10,857.82 is: 16,266.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519.94 : 18,756.80 = 10,857.82 : x
  2. Step 2: Convert to fraction form
    12,519.94/18,756.80 = 10,857.82/x
  3. Step 3: Cross multiply
    12,519.94x = 18,756.80 × 10,857.82
  4. Step 4: Simplify right side
    12,519.94x = 203,657,958.18
  5. Step 5: Solve for x
    x = 203,657,958.18/12,519.94
  6. Step 6: Final answer
    x = 16,266.69

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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.