Home / 9,721.08-13,414.78-5,472.36

Finding the Fourth Proportional to 9,721.08, 13,414.78 and 5,472.36

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Solution

The fourth proportional to 9,721.08, 13,414.78 and 5,472.36 is: 7,551.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.08 : 13,414.78 = 5,472.36 : x
  2. Step 2: Convert to fraction form
    9,721.08/13,414.78 = 5,472.36/x
  3. Step 3: Cross multiply
    9,721.08x = 13,414.78 × 5,472.36
  4. Step 4: Simplify right side
    9,721.08x = 73,410,505.48
  5. Step 5: Solve for x
    x = 73,410,505.48/9,721.08
  6. Step 6: Final answer
    x = 7,551.68

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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.