Home / 11,212.94-15,388.56-10,318.70

Finding the Fourth Proportional to 11,212.94, 15,388.56 and 10,318.70

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Solution

The fourth proportional to 11,212.94, 15,388.56 and 10,318.70 is: 14,161.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.94 : 15,388.56 = 10,318.70 : x
  2. Step 2: Convert to fraction form
    11,212.94/15,388.56 = 10,318.70/x
  3. Step 3: Cross multiply
    11,212.94x = 15,388.56 × 10,318.70
  4. Step 4: Simplify right side
    11,212.94x = 158,789,934.07
  5. Step 5: Solve for x
    x = 158,789,934.07/11,212.94
  6. Step 6: Final answer
    x = 14,161.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.