Home / 12,170.73-18,263.40-4,380.15

Finding the Fourth Proportional to 12,170.73, 18,263.40 and 4,380.15

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Solution

The fourth proportional to 12,170.73, 18,263.40 and 4,380.15 is: 6,572.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170.73 : 18,263.40 = 4,380.15 : x
  2. Step 2: Convert to fraction form
    12,170.73/18,263.40 = 4,380.15/x
  3. Step 3: Cross multiply
    12,170.73x = 18,263.40 × 4,380.15
  4. Step 4: Simplify right side
    12,170.73x = 79,996,431.51
  5. Step 5: Solve for x
    x = 79,996,431.51/12,170.73
  6. Step 6: Final answer
    x = 6,572.85

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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.