Home / 12,835.13-19,286.54-6,916.42

Finding the Fourth Proportional to 12,835.13, 19,286.54 and 6,916.42

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Solution

The fourth proportional to 12,835.13, 19,286.54 and 6,916.42 is: 10,392.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,835.13 : 19,286.54 = 6,916.42 : x
  2. Step 2: Convert to fraction form
    12,835.13/19,286.54 = 6,916.42/x
  3. Step 3: Cross multiply
    12,835.13x = 19,286.54 × 6,916.42
  4. Step 4: Simplify right side
    12,835.13x = 133,393,679.97
  5. Step 5: Solve for x
    x = 133,393,679.97/12,835.13
  6. Step 6: Final answer
    x = 10,392.86

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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.