Home / 12,834.63-19,285.79-6,915.92

Finding the Fourth Proportional to 12,834.63, 19,285.79 and 6,915.92

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Solution

The fourth proportional to 12,834.63, 19,285.79 and 6,915.92 is: 10,392.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,834.63 : 19,285.79 = 6,915.92 : x
  2. Step 2: Convert to fraction form
    12,834.63/19,285.79 = 6,915.92/x
  3. Step 3: Cross multiply
    12,834.63x = 19,285.79 × 6,915.92
  4. Step 4: Simplify right side
    12,834.63x = 133,378,849.77
  5. Step 5: Solve for x
    x = 133,378,849.77/12,834.63
  6. Step 6: Final answer
    x = 10,392.11

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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.