Home / 11,621.28-17,440.56-6,437.28

Finding the Fourth Proportional to 11,621.28, 17,440.56 and 6,437.28

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Solution

The fourth proportional to 11,621.28, 17,440.56 and 6,437.28 is: 9,660.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.28 : 17,440.56 = 6,437.28 : x
  2. Step 2: Convert to fraction form
    11,621.28/17,440.56 = 6,437.28/x
  3. Step 3: Cross multiply
    11,621.28x = 17,440.56 × 6,437.28
  4. Step 4: Simplify right side
    11,621.28x = 112,269,768.08
  5. Step 5: Solve for x
    x = 112,269,768.08/11,621.28
  6. Step 6: Final answer
    x = 9,660.71

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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.