Home / 13,584.10-20,377.46-4,221.61

Finding the Fourth Proportional to 13,584.10, 20,377.46 and 4,221.61

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Solution

The fourth proportional to 13,584.10, 20,377.46 and 4,221.61 is: 6,332.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,584.10 : 20,377.46 = 4,221.61 : x
  2. Step 2: Convert to fraction form
    13,584.10/20,377.46 = 4,221.61/x
  3. Step 3: Cross multiply
    13,584.10x = 20,377.46 × 4,221.61
  4. Step 4: Simplify right side
    13,584.10x = 86,025,688.91
  5. Step 5: Solve for x
    x = 86,025,688.91/13,584.10
  6. Step 6: Final answer
    x = 6,332.82

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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.