Home / 12,153.23-18,229.24-4,759.05

Finding the Fourth Proportional to 12,153.23, 18,229.24 and 4,759.05

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Solution

The fourth proportional to 12,153.23, 18,229.24 and 4,759.05 is: 7,138.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.23 : 18,229.24 = 4,759.05 : x
  2. Step 2: Convert to fraction form
    12,153.23/18,229.24 = 4,759.05/x
  3. Step 3: Cross multiply
    12,153.23x = 18,229.24 × 4,759.05
  4. Step 4: Simplify right side
    12,153.23x = 86,753,852.72
  5. Step 5: Solve for x
    x = 86,753,852.72/12,153.23
  6. Step 6: Final answer
    x = 7,138.34

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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.