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Finding the Third Proportional to 10,440 and 13,209.75

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Solution

The third proportional to 10,440 and 13,209.75 is: 16,714.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440 : 13,209.75 = 13,209.75 : x
  2. Step 2: Convert to fraction form
    10,440/13,209.75 = 13,209.75/x
  3. Step 3: Cross multiply
    10,440x = 13,209.75 × 13,209.75
  4. Step 4: Simplify right side
    10,440x = 174,497,495.06
  5. Step 5: Solve for x
    x = 174,497,495.06/10,440
  6. Step 6: Final answer
    x = 16,714.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.