Home / 13,511.32-20,267.82-5,717.50

Finding the Fourth Proportional to 13,511.32, 20,267.82 and 5,717.50

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Solution

The fourth proportional to 13,511.32, 20,267.82 and 5,717.50 is: 8,576.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.32 : 20,267.82 = 5,717.50 : x
  2. Step 2: Convert to fraction form
    13,511.32/20,267.82 = 5,717.50/x
  3. Step 3: Cross multiply
    13,511.32x = 20,267.82 × 5,717.50
  4. Step 4: Simplify right side
    13,511.32x = 115,881,260.85
  5. Step 5: Solve for x
    x = 115,881,260.85/13,511.32
  6. Step 6: Final answer
    x = 8,576.61

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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.