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Finding the Third Proportional to 5,775.40 and 8,918.15

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Solution

The third proportional to 5,775.40 and 8,918.15 is: 13,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.40 : 8,918.15 = 8,918.15 : x
  2. Step 2: Convert to fraction form
    5,775.40/8,918.15 = 8,918.15/x
  3. Step 3: Cross multiply
    5,775.40x = 8,918.15 × 8,918.15
  4. Step 4: Simplify right side
    5,775.40x = 79,533,354.14
  5. Step 5: Solve for x
    x = 79,533,354.14/5,775.40
  6. Step 6: Final answer
    x = 13,771.05

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.