Home / 9,642.24-13,299.36-6,278.82

Finding the Fourth Proportional to 9,642.24, 13,299.36 and 6,278.82

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Solution

The fourth proportional to 9,642.24, 13,299.36 and 6,278.82 is: 8,660.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,642.24 : 13,299.36 = 6,278.82 : x
  2. Step 2: Convert to fraction form
    9,642.24/13,299.36 = 6,278.82/x
  3. Step 3: Cross multiply
    9,642.24x = 13,299.36 × 6,278.82
  4. Step 4: Simplify right side
    9,642.24x = 83,504,287.56
  5. Step 5: Solve for x
    x = 83,504,287.56/9,642.24
  6. Step 6: Final answer
    x = 8,660.26

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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.