Home / 12,700.11-19,049.46-3,934.77

Finding the Fourth Proportional to 12,700.11, 19,049.46 and 3,934.77

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Solution

The fourth proportional to 12,700.11, 19,049.46 and 3,934.77 is: 5,901.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.11 : 19,049.46 = 3,934.77 : x
  2. Step 2: Convert to fraction form
    12,700.11/19,049.46 = 3,934.77/x
  3. Step 3: Cross multiply
    12,700.11x = 19,049.46 × 3,934.77
  4. Step 4: Simplify right side
    12,700.11x = 74,955,243.72
  5. Step 5: Solve for x
    x = 74,955,243.72/12,700.11
  6. Step 6: Final answer
    x = 5,901.94

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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.