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Finding the Third Proportional to 10,887 and 15,284.25

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Solution

The third proportional to 10,887 and 15,284.25 is: 21,457.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887 : 15,284.25 = 15,284.25 : x
  2. Step 2: Convert to fraction form
    10,887/15,284.25 = 15,284.25/x
  3. Step 3: Cross multiply
    10,887x = 15,284.25 × 15,284.25
  4. Step 4: Simplify right side
    10,887x = 233,608,298.06
  5. Step 5: Solve for x
    x = 233,608,298.06/10,887
  6. Step 6: Final answer
    x = 21,457.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.