Home / 12,630.10-18,945.19-3,864.98

Finding the Fourth Proportional to 12,630.10, 18,945.19 and 3,864.98

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Solution

The fourth proportional to 12,630.10, 18,945.19 and 3,864.98 is: 5,797.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.10 : 18,945.19 = 3,864.98 : x
  2. Step 2: Convert to fraction form
    12,630.10/18,945.19 = 3,864.98/x
  3. Step 3: Cross multiply
    12,630.10x = 18,945.19 × 3,864.98
  4. Step 4: Simplify right side
    12,630.10x = 73,222,780.45
  5. Step 5: Solve for x
    x = 73,222,780.45/12,630.10
  6. Step 6: Final answer
    x = 5,797.48

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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.