Home / 12,932.81-19,286.03-12,814.57

Finding the Fourth Proportional to 12,932.81, 19,286.03 and 12,814.57

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Solution

The fourth proportional to 12,932.81, 19,286.03 and 12,814.57 is: 19,109.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,932.81 : 19,286.03 = 12,814.57 : x
  2. Step 2: Convert to fraction form
    12,932.81/19,286.03 = 12,814.57/x
  3. Step 3: Cross multiply
    12,932.81x = 19,286.03 × 12,814.57
  4. Step 4: Simplify right side
    12,932.81x = 247,142,237.60
  5. Step 5: Solve for x
    x = 247,142,237.60/12,932.81
  6. Step 6: Final answer
    x = 19,109.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.