Home / 8,436.45-12,646.79-3,753.92

Finding the Fourth Proportional to 8,436.45, 12,646.79 and 3,753.92

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Solution

The fourth proportional to 8,436.45, 12,646.79 and 3,753.92 is: 5,627.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.45 : 12,646.79 = 3,753.92 : x
  2. Step 2: Convert to fraction form
    8,436.45/12,646.79 = 3,753.92/x
  3. Step 3: Cross multiply
    8,436.45x = 12,646.79 × 3,753.92
  4. Step 4: Simplify right side
    8,436.45x = 47,474,983.15
  5. Step 5: Solve for x
    x = 47,474,983.15/8,436.45
  6. Step 6: Final answer
    x = 5,627.36

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1.5x scale

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.