Home / 12,301.92-18,450.90-3,534.84

Finding the Fourth Proportional to 12,301.92, 18,450.90 and 3,534.84

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Solution

The fourth proportional to 12,301.92, 18,450.90 and 3,534.84 is: 5,301.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,301.92 : 18,450.90 = 3,534.84 : x
  2. Step 2: Convert to fraction form
    12,301.92/18,450.90 = 3,534.84/x
  3. Step 3: Cross multiply
    12,301.92x = 18,450.90 × 3,534.84
  4. Step 4: Simplify right side
    12,301.92x = 65,220,979.36
  5. Step 5: Solve for x
    x = 65,220,979.36/12,301.92
  6. Step 6: Final answer
    x = 5,301.69

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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.