Home / 9,155.20-13,726.73-3,311.05

Finding the Fourth Proportional to 9,155.20, 13,726.73 and 3,311.05

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Solution

The fourth proportional to 9,155.20, 13,726.73 and 3,311.05 is: 4,964.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.20 : 13,726.73 = 3,311.05 : x
  2. Step 2: Convert to fraction form
    9,155.20/13,726.73 = 3,311.05/x
  3. Step 3: Cross multiply
    9,155.20x = 13,726.73 × 3,311.05
  4. Step 4: Simplify right side
    9,155.20x = 45,449,889.37
  5. Step 5: Solve for x
    x = 45,449,889.37/9,155.20
  6. Step 6: Final answer
    x = 4,964.38

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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.