Home / 8,436.15-12,644.37-6,349.47

Finding the Fourth Proportional to 8,436.15, 12,644.37 and 6,349.47

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Solution

The fourth proportional to 8,436.15, 12,644.37 and 6,349.47 is: 9,516.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.15 : 12,644.37 = 6,349.47 : x
  2. Step 2: Convert to fraction form
    8,436.15/12,644.37 = 6,349.47/x
  3. Step 3: Cross multiply
    8,436.15x = 12,644.37 × 6,349.47
  4. Step 4: Simplify right side
    8,436.15x = 80,285,047.98
  5. Step 5: Solve for x
    x = 80,285,047.98/8,436.15
  6. Step 6: Final answer
    x = 9,516.79

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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.