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Finding the Third Proportional to 9,480 and 13,236

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Solution

The third proportional to 9,480 and 13,236 is: 18,480.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,480 : 13,236 = 13,236 : x
  2. Step 2: Convert to fraction form
    9,480/13,236 = 13,236/x
  3. Step 3: Cross multiply
    9,480x = 13,236 × 13,236
  4. Step 4: Simplify right side
    9,480x = 175,191,696
  5. Step 5: Solve for x
    x = 175,191,696/9,480
  6. Step 6: Final answer
    x = 18,480.14

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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.