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Finding the Third Proportional to 9,153 and 21,115.69

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Solution

The third proportional to 9,153 and 21,115.69 is: 48,713.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153 : 21,115.69 = 21,115.69 : x
  2. Step 2: Convert to fraction form
    9,153/21,115.69 = 21,115.69/x
  3. Step 3: Cross multiply
    9,153x = 21,115.69 × 21,115.69
  4. Step 4: Simplify right side
    9,153x = 445,872,258.60
  5. Step 5: Solve for x
    x = 445,872,258.60/9,153
  6. Step 6: Final answer
    x = 48,713.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.