Home / 8,271.32-12,408.51-3,888.77

Finding the Fourth Proportional to 8,271.32, 12,408.51 and 3,888.77

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Solution

The fourth proportional to 8,271.32, 12,408.51 and 3,888.77 is: 5,833.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.32 : 12,408.51 = 3,888.77 : x
  2. Step 2: Convert to fraction form
    8,271.32/12,408.51 = 3,888.77/x
  3. Step 3: Cross multiply
    8,271.32x = 12,408.51 × 3,888.77
  4. Step 4: Simplify right side
    8,271.32x = 48,253,841.90
  5. Step 5: Solve for x
    x = 48,253,841.90/8,271.32
  6. Step 6: Final answer
    x = 5,833.88

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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.