Home / 8,490.36-12,725.06-6,158.37

Finding the Fourth Proportional to 8,490.36, 12,725.06 and 6,158.37

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Solution

The fourth proportional to 8,490.36, 12,725.06 and 6,158.37 is: 9,229.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.36 : 12,725.06 = 6,158.37 : x
  2. Step 2: Convert to fraction form
    8,490.36/12,725.06 = 6,158.37/x
  3. Step 3: Cross multiply
    8,490.36x = 12,725.06 × 6,158.37
  4. Step 4: Simplify right side
    8,490.36x = 78,365,596.96
  5. Step 5: Solve for x
    x = 78,365,596.96/8,490.36
  6. Step 6: Final answer
    x = 9,229.95

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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.