Home / 7,689.42-11,511.68-5,847.74

Finding the Fourth Proportional to 7,689.42, 11,511.68 and 5,847.74

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Solution

The fourth proportional to 7,689.42, 11,511.68 and 5,847.74 is: 8,754.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.42 : 11,511.68 = 5,847.74 : x
  2. Step 2: Convert to fraction form
    7,689.42/11,511.68 = 5,847.74/x
  3. Step 3: Cross multiply
    7,689.42x = 11,511.68 × 5,847.74
  4. Step 4: Simplify right side
    7,689.42x = 67,317,311.60
  5. Step 5: Solve for x
    x = 67,317,311.60/7,689.42
  6. Step 6: Final answer
    x = 8,754.54

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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.