Home / 8,634.80-12,956.13-5,131.73

Finding the Fourth Proportional to 8,634.80, 12,956.13 and 5,131.73

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Solution

The fourth proportional to 8,634.80, 12,956.13 and 5,131.73 is: 7,699.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634.80 : 12,956.13 = 5,131.73 : x
  2. Step 2: Convert to fraction form
    8,634.80/12,956.13 = 5,131.73/x
  3. Step 3: Cross multiply
    8,634.80x = 12,956.13 × 5,131.73
  4. Step 4: Simplify right side
    8,634.80x = 66,487,296.22
  5. Step 5: Solve for x
    x = 66,487,296.22/8,634.80
  6. Step 6: Final answer
    x = 7,699.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.