Home / 18,847.20-28,239.36-8,301.52

Finding the Fourth Proportional to 18,847.20, 28,239.36 and 8,301.52

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Solution

The fourth proportional to 18,847.20, 28,239.36 and 8,301.52 is: 12,438.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,847.20 : 28,239.36 = 8,301.52 : x
  2. Step 2: Convert to fraction form
    18,847.20/28,239.36 = 8,301.52/x
  3. Step 3: Cross multiply
    18,847.20x = 28,239.36 × 8,301.52
  4. Step 4: Simplify right side
    18,847.20x = 234,429,611.83
  5. Step 5: Solve for x
    x = 234,429,611.83/18,847.20
  6. Step 6: Final answer
    x = 12,438.43

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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.