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Finding the Third Proportional to 5,130 and 11,065.50

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Solution

The third proportional to 5,130 and 11,065.50 is: 23,868.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130 : 11,065.50 = 11,065.50 : x
  2. Step 2: Convert to fraction form
    5,130/11,065.50 = 11,065.50/x
  3. Step 3: Cross multiply
    5,130x = 11,065.50 × 11,065.50
  4. Step 4: Simplify right side
    5,130x = 122,445,290.25
  5. Step 5: Solve for x
    x = 122,445,290.25/5,130
  6. Step 6: Final answer
    x = 23,868.48

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.