Home / 9,155.30-13,722.87-5,991.44

Finding the Fourth Proportional to 9,155.30, 13,722.87 and 5,991.44

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Solution

The fourth proportional to 9,155.30, 13,722.87 and 5,991.44 is: 8,980.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.30 : 13,722.87 = 5,991.44 : x
  2. Step 2: Convert to fraction form
    9,155.30/13,722.87 = 5,991.44/x
  3. Step 3: Cross multiply
    9,155.30x = 13,722.87 × 5,991.44
  4. Step 4: Simplify right side
    9,155.30x = 82,219,757.55
  5. Step 5: Solve for x
    x = 82,219,757.55/9,155.30
  6. Step 6: Final answer
    x = 8,980.57

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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.