Home / 8,650.20-12,975.36-3,715.68

Finding the Fourth Proportional to 8,650.20, 12,975.36 and 3,715.68

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Solution

The fourth proportional to 8,650.20, 12,975.36 and 3,715.68 is: 5,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.20 : 12,975.36 = 3,715.68 : x
  2. Step 2: Convert to fraction form
    8,650.20/12,975.36 = 3,715.68/x
  3. Step 3: Cross multiply
    8,650.20x = 12,975.36 × 3,715.68
  4. Step 4: Simplify right side
    8,650.20x = 48,212,285.64
  5. Step 5: Solve for x
    x = 48,212,285.64/8,650.20
  6. Step 6: Final answer
    x = 5,573.55

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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.