Home / 8,424.37-12,639.83-3,492.75

Finding the Fourth Proportional to 8,424.37, 12,639.83 and 3,492.75

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Solution

The fourth proportional to 8,424.37, 12,639.83 and 3,492.75 is: 5,240.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.37 : 12,639.83 = 3,492.75 : x
  2. Step 2: Convert to fraction form
    8,424.37/12,639.83 = 3,492.75/x
  3. Step 3: Cross multiply
    8,424.37x = 12,639.83 × 3,492.75
  4. Step 4: Simplify right side
    8,424.37x = 44,147,748.77
  5. Step 5: Solve for x
    x = 44,147,748.77/8,424.37
  6. Step 6: Final answer
    x = 5,240.48

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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.