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Finding the Fourth Proportional to 8,036.21, 12,125.00 and 7,760.09

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Solution

The fourth proportional to 8,036.21, 12,125.00 and 7,760.09 is: 11,708.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,036.21 : 12,125.00 = 7,760.09 : x
  2. Step 2: Convert to fraction form
    8,036.21/12,125.00 = 7,760.09/x
  3. Step 3: Cross multiply
    8,036.21x = 12,125.00 × 7,760.09
  4. Step 4: Simplify right side
    8,036.21x = 94,091,140.96
  5. Step 5: Solve for x
    x = 94,091,140.96/8,036.21
  6. Step 6: Final answer
    x = 11,708.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.