Home / 9,155.05-13,731.36-2,581.76

Finding the Fourth Proportional to 9,155.05, 13,731.36 and 2,581.76

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Solution

The fourth proportional to 9,155.05, 13,731.36 and 2,581.76 is: 3,872.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.05 : 13,731.36 = 2,581.76 : x
  2. Step 2: Convert to fraction form
    9,155.05/13,731.36 = 2,581.76/x
  3. Step 3: Cross multiply
    9,155.05x = 13,731.36 × 2,581.76
  4. Step 4: Simplify right side
    9,155.05x = 35,451,100.64
  5. Step 5: Solve for x
    x = 35,451,100.64/9,155.05
  6. Step 6: Final answer
    x = 3,872.30

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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.