Home / 13,584.06-20,368.17-4,221.54

Finding the Fourth Proportional to 13,584.06, 20,368.17 and 4,221.54

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Solution

The fourth proportional to 13,584.06, 20,368.17 and 4,221.54 is: 6,329.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,584.06 : 20,368.17 = 4,221.54 : x
  2. Step 2: Convert to fraction form
    13,584.06/20,368.17 = 4,221.54/x
  3. Step 3: Cross multiply
    13,584.06x = 20,368.17 × 4,221.54
  4. Step 4: Simplify right side
    13,584.06x = 85,985,044.38
  5. Step 5: Solve for x
    x = 85,985,044.38/13,584.06
  6. Step 6: Final answer
    x = 6,329.85

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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.