Home / 8,115.16-12,168.36-2,848.82

Finding the Fourth Proportional to 8,115.16, 12,168.36 and 2,848.82

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Solution

The fourth proportional to 8,115.16, 12,168.36 and 2,848.82 is: 4,271.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.16 : 12,168.36 = 2,848.82 : x
  2. Step 2: Convert to fraction form
    8,115.16/12,168.36 = 2,848.82/x
  3. Step 3: Cross multiply
    8,115.16x = 12,168.36 × 2,848.82
  4. Step 4: Simplify right side
    8,115.16x = 34,665,467.34
  5. Step 5: Solve for x
    x = 34,665,467.34/8,115.16
  6. Step 6: Final answer
    x = 4,271.69

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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.