Home / 18,611.08-27,912.30-5,459.92

Finding the Fourth Proportional to 18,611.08, 27,912.30 and 5,459.92

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Solution

The fourth proportional to 18,611.08, 27,912.30 and 5,459.92 is: 8,188.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611.08 : 27,912.30 = 5,459.92 : x
  2. Step 2: Convert to fraction form
    18,611.08/27,912.30 = 5,459.92/x
  3. Step 3: Cross multiply
    18,611.08x = 27,912.30 × 5,459.92
  4. Step 4: Simplify right side
    18,611.08x = 152,398,925.02
  5. Step 5: Solve for x
    x = 152,398,925.02/18,611.08
  6. Step 6: Final answer
    x = 8,188.61

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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.