Home / 13,728.07-20,584.75-4,365.55

Finding the Fourth Proportional to 13,728.07, 20,584.75 and 4,365.55

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Solution

The fourth proportional to 13,728.07, 20,584.75 and 4,365.55 is: 6,545.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.07 : 20,584.75 = 4,365.55 : x
  2. Step 2: Convert to fraction form
    13,728.07/20,584.75 = 4,365.55/x
  3. Step 3: Cross multiply
    13,728.07x = 20,584.75 × 4,365.55
  4. Step 4: Simplify right side
    13,728.07x = 89,863,755.36
  5. Step 5: Solve for x
    x = 89,863,755.36/13,728.07
  6. Step 6: Final answer
    x = 6,545.99

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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.