Home / 9,721.56-13,414.23-5,529

Finding the Fourth Proportional to 9,721.56, 13,414.23 and 5,529

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Solution

The fourth proportional to 9,721.56, 13,414.23 and 5,529 is: 7,629.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.56 : 13,414.23 = 5,529 : x
  2. Step 2: Convert to fraction form
    9,721.56/13,414.23 = 5,529/x
  3. Step 3: Cross multiply
    9,721.56x = 13,414.23 × 5,529
  4. Step 4: Simplify right side
    9,721.56x = 74,167,277.67
  5. Step 5: Solve for x
    x = 74,167,277.67/9,721.56
  6. Step 6: Final answer
    x = 7,629.15

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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.