Home / 9,438.50-14,159.78-3,198.66

Finding the Fourth Proportional to 9,438.50, 14,159.78 and 3,198.66

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Solution

The fourth proportional to 9,438.50, 14,159.78 and 3,198.66 is: 4,798.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.50 : 14,159.78 = 3,198.66 : x
  2. Step 2: Convert to fraction form
    9,438.50/14,159.78 = 3,198.66/x
  3. Step 3: Cross multiply
    9,438.50x = 14,159.78 × 3,198.66
  4. Step 4: Simplify right side
    9,438.50x = 45,292,321.89
  5. Step 5: Solve for x
    x = 45,292,321.89/9,438.50
  6. Step 6: Final answer
    x = 4,798.68

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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.