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Finding the Third Proportional to 6,480 and 15,288.75

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Solution

The third proportional to 6,480 and 15,288.75 is: 36,071.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480 : 15,288.75 = 15,288.75 : x
  2. Step 2: Convert to fraction form
    6,480/15,288.75 = 15,288.75/x
  3. Step 3: Cross multiply
    6,480x = 15,288.75 × 15,288.75
  4. Step 4: Simplify right side
    6,480x = 233,745,876.56
  5. Step 5: Solve for x
    x = 233,745,876.56/6,480
  6. Step 6: Final answer
    x = 36,071.89

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.