Home / 9,155.41-13,729.86-3,958.45

Finding the Fourth Proportional to 9,155.41, 13,729.86 and 3,958.45

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Solution

The fourth proportional to 9,155.41, 13,729.86 and 3,958.45 is: 5,936.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.41 : 13,729.86 = 3,958.45 : x
  2. Step 2: Convert to fraction form
    9,155.41/13,729.86 = 3,958.45/x
  3. Step 3: Cross multiply
    9,155.41x = 13,729.86 × 3,958.45
  4. Step 4: Simplify right side
    9,155.41x = 54,348,895.67
  5. Step 5: Solve for x
    x = 54,348,895.67/9,155.41
  6. Step 6: Final answer
    x = 5,936.26

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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.