Home / 11,856.20-17,785.20-3,535.57

Finding the Fourth Proportional to 11,856.20, 17,785.20 and 3,535.57

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Solution

The fourth proportional to 11,856.20, 17,785.20 and 3,535.57 is: 5,303.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,856.20 : 17,785.20 = 3,535.57 : x
  2. Step 2: Convert to fraction form
    11,856.20/17,785.20 = 3,535.57/x
  3. Step 3: Cross multiply
    11,856.20x = 17,785.20 × 3,535.57
  4. Step 4: Simplify right side
    11,856.20x = 62,880,730.64
  5. Step 5: Solve for x
    x = 62,880,730.64/11,856.20
  6. Step 6: Final answer
    x = 5,303.62

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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.