Home / 11,752.20-16,217.78-7,274.79

Finding the Fourth Proportional to 11,752.20, 16,217.78 and 7,274.79

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Solution

The fourth proportional to 11,752.20, 16,217.78 and 7,274.79 is: 10,039.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,752.20 : 16,217.78 = 7,274.79 : x
  2. Step 2: Convert to fraction form
    11,752.20/16,217.78 = 7,274.79/x
  3. Step 3: Cross multiply
    11,752.20x = 16,217.78 × 7,274.79
  4. Step 4: Simplify right side
    11,752.20x = 117,980,907.39
  5. Step 5: Solve for x
    x = 117,980,907.39/11,752.20
  6. Step 6: Final answer
    x = 10,039.05

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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.