Home / 13,155.20-19,730.24-3,794.56

Finding the Fourth Proportional to 13,155.20, 19,730.24 and 3,794.56

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Solution

The fourth proportional to 13,155.20, 19,730.24 and 3,794.56 is: 5,691.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155.20 : 19,730.24 = 3,794.56 : x
  2. Step 2: Convert to fraction form
    13,155.20/19,730.24 = 3,794.56/x
  3. Step 3: Cross multiply
    13,155.20x = 19,730.24 × 3,794.56
  4. Step 4: Simplify right side
    13,155.20x = 74,867,579.49
  5. Step 5: Solve for x
    x = 74,867,579.49/13,155.20
  6. Step 6: Final answer
    x = 5,691.10

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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.