Home / 12,936.08-19,387.68-11,263.40

Finding the Fourth Proportional to 12,936.08, 19,387.68 and 11,263.40

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Solution

The fourth proportional to 12,936.08, 19,387.68 and 11,263.40 is: 16,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936.08 : 19,387.68 = 11,263.40 : x
  2. Step 2: Convert to fraction form
    12,936.08/19,387.68 = 11,263.40/x
  3. Step 3: Cross multiply
    12,936.08x = 19,387.68 × 11,263.40
  4. Step 4: Simplify right side
    12,936.08x = 218,371,194.91
  5. Step 5: Solve for x
    x = 218,371,194.91/12,936.08
  6. Step 6: Final answer
    x = 16,880.79

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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.