Home / 11,942.64-16,490.79-9,963.57

Finding the Fourth Proportional to 11,942.64, 16,490.79 and 9,963.57

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Solution

The fourth proportional to 11,942.64, 16,490.79 and 9,963.57 is: 13,758.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.64 : 16,490.79 = 9,963.57 : x
  2. Step 2: Convert to fraction form
    11,942.64/16,490.79 = 9,963.57/x
  3. Step 3: Cross multiply
    11,942.64x = 16,490.79 × 9,963.57
  4. Step 4: Simplify right side
    11,942.64x = 164,307,140.52
  5. Step 5: Solve for x
    x = 164,307,140.52/11,942.64
  6. Step 6: Final answer
    x = 13,758.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.