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Finding the Third Proportional to 6,720 and 9,883.50

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Solution

The third proportional to 6,720 and 9,883.50 is: 14,536.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720 : 9,883.50 = 9,883.50 : x
  2. Step 2: Convert to fraction form
    6,720/9,883.50 = 9,883.50/x
  3. Step 3: Cross multiply
    6,720x = 9,883.50 × 9,883.50
  4. Step 4: Simplify right side
    6,720x = 97,683,572.25
  5. Step 5: Solve for x
    x = 97,683,572.25/6,720
  6. Step 6: Final answer
    x = 14,536.25

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.