Home / 13,600.57-20,376.69-5,685.64

Finding the Fourth Proportional to 13,600.57, 20,376.69 and 5,685.64

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Solution

The fourth proportional to 13,600.57, 20,376.69 and 5,685.64 is: 8,518.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.57 : 20,376.69 = 5,685.64 : x
  2. Step 2: Convert to fraction form
    13,600.57/20,376.69 = 5,685.64/x
  3. Step 3: Cross multiply
    13,600.57x = 20,376.69 × 5,685.64
  4. Step 4: Simplify right side
    13,600.57x = 115,854,523.73
  5. Step 5: Solve for x
    x = 115,854,523.73/13,600.57
  6. Step 6: Final answer
    x = 8,518.36

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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.