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Finding the Third Proportional to 9,990.42 and 14,917.08

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Solution

The third proportional to 9,990.42 and 14,917.08 is: 22,273.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.42 : 14,917.08 = 14,917.08 : x
  2. Step 2: Convert to fraction form
    9,990.42/14,917.08 = 14,917.08/x
  3. Step 3: Cross multiply
    9,990.42x = 14,917.08 × 14,917.08
  4. Step 4: Simplify right side
    9,990.42x = 222,519,219.79
  5. Step 5: Solve for x
    x = 222,519,219.79/9,990.42
  6. Step 6: Final answer
    x = 22,273.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.