Home / 11,229.14-15,502.88-9,983.68

Finding the Fourth Proportional to 11,229.14, 15,502.88 and 9,983.68

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Solution

The fourth proportional to 11,229.14, 15,502.88 and 9,983.68 is: 13,783.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.14 : 15,502.88 = 9,983.68 : x
  2. Step 2: Convert to fraction form
    11,229.14/15,502.88 = 9,983.68/x
  3. Step 3: Cross multiply
    11,229.14x = 15,502.88 × 9,983.68
  4. Step 4: Simplify right side
    11,229.14x = 154,775,793.00
  5. Step 5: Solve for x
    x = 154,775,793.00/11,229.14
  6. Step 6: Final answer
    x = 13,783.41

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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.