Home / 8,172.93-11,278.35-4,636.83

Finding the Fourth Proportional to 8,172.93, 11,278.35 and 4,636.83

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Solution

The fourth proportional to 8,172.93, 11,278.35 and 4,636.83 is: 6,398.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.93 : 11,278.35 = 4,636.83 : x
  2. Step 2: Convert to fraction form
    8,172.93/11,278.35 = 4,636.83/x
  3. Step 3: Cross multiply
    8,172.93x = 11,278.35 × 4,636.83
  4. Step 4: Simplify right side
    8,172.93x = 52,295,791.63
  5. Step 5: Solve for x
    x = 52,295,791.63/8,172.93
  6. Step 6: Final answer
    x = 6,398.66

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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.