Home / 9,720.82-13,414.70-5,529.08

Finding the Fourth Proportional to 9,720.82, 13,414.70 and 5,529.08

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Solution

The fourth proportional to 9,720.82, 13,414.70 and 5,529.08 is: 7,630.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.82 : 13,414.70 = 5,529.08 : x
  2. Step 2: Convert to fraction form
    9,720.82/13,414.70 = 5,529.08/x
  3. Step 3: Cross multiply
    9,720.82x = 13,414.70 × 5,529.08
  4. Step 4: Simplify right side
    9,720.82x = 74,170,949.48
  5. Step 5: Solve for x
    x = 74,170,949.48/9,720.82
  6. Step 6: Final answer
    x = 7,630.11

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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.