Home / 8,172.43-11,277.73-4,815.45

Finding the Fourth Proportional to 8,172.43, 11,277.73 and 4,815.45

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Solution

The fourth proportional to 8,172.43, 11,277.73 and 4,815.45 is: 6,645.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.43 : 11,277.73 = 4,815.45 : x
  2. Step 2: Convert to fraction form
    8,172.43/11,277.73 = 4,815.45/x
  3. Step 3: Cross multiply
    8,172.43x = 11,277.73 × 4,815.45
  4. Step 4: Simplify right side
    8,172.43x = 54,307,350.95
  5. Step 5: Solve for x
    x = 54,307,350.95/8,172.43
  6. Step 6: Final answer
    x = 6,645.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.