Home / 8,031.24-12,066.30-5,115.24

Finding the Fourth Proportional to 8,031.24, 12,066.30 and 5,115.24

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Solution

The fourth proportional to 8,031.24, 12,066.30 and 5,115.24 is: 7,685.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,031.24 : 12,066.30 = 5,115.24 : x
  2. Step 2: Convert to fraction form
    8,031.24/12,066.30 = 5,115.24/x
  3. Step 3: Cross multiply
    8,031.24x = 12,066.30 × 5,115.24
  4. Step 4: Simplify right side
    8,031.24x = 61,722,020.41
  5. Step 5: Solve for x
    x = 61,722,020.41/8,031.24
  6. Step 6: Final answer
    x = 7,685.24

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