Home / 11,509.72-15,943.57-11,276.44

Finding the Fourth Proportional to 11,509.72, 15,943.57 and 11,276.44

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Solution

The fourth proportional to 11,509.72, 15,943.57 and 11,276.44 is: 15,620.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,509.72 : 15,943.57 = 11,276.44 : x
  2. Step 2: Convert to fraction form
    11,509.72/15,943.57 = 11,276.44/x
  3. Step 3: Cross multiply
    11,509.72x = 15,943.57 × 11,276.44
  4. Step 4: Simplify right side
    11,509.72x = 179,786,710.49
  5. Step 5: Solve for x
    x = 179,786,710.49/11,509.72
  6. Step 6: Final answer
    x = 15,620.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.