Home / 12,124.46-18,202.90-11,730.80

Finding the Fourth Proportional to 12,124.46, 18,202.90 and 11,730.80

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Solution

The fourth proportional to 12,124.46, 18,202.90 and 11,730.80 is: 17,611.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.46 : 18,202.90 = 11,730.80 : x
  2. Step 2: Convert to fraction form
    12,124.46/18,202.90 = 11,730.80/x
  3. Step 3: Cross multiply
    12,124.46x = 18,202.90 × 11,730.80
  4. Step 4: Simplify right side
    12,124.46x = 213,534,579.32
  5. Step 5: Solve for x
    x = 213,534,579.32/12,124.46
  6. Step 6: Final answer
    x = 17,611.88

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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.