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Finding the Third Proportional to 8,130 and 11,042.50

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Solution

The third proportional to 8,130 and 11,042.50 is: 14,998.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130 : 11,042.50 = 11,042.50 : x
  2. Step 2: Convert to fraction form
    8,130/11,042.50 = 11,042.50/x
  3. Step 3: Cross multiply
    8,130x = 11,042.50 × 11,042.50
  4. Step 4: Simplify right side
    8,130x = 121,936,806.25
  5. Step 5: Solve for x
    x = 121,936,806.25/8,130
  6. Step 6: Final answer
    x = 14,998.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.