Home / 13,815.62-20,727.48-4,455.45

Finding the Fourth Proportional to 13,815.62, 20,727.48 and 4,455.45

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Solution

The fourth proportional to 13,815.62, 20,727.48 and 4,455.45 is: 6,684.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.62 : 20,727.48 = 4,455.45 : x
  2. Step 2: Convert to fraction form
    13,815.62/20,727.48 = 4,455.45/x
  3. Step 3: Cross multiply
    13,815.62x = 20,727.48 × 4,455.45
  4. Step 4: Simplify right side
    13,815.62x = 92,350,280.31
  5. Step 5: Solve for x
    x = 92,350,280.31/13,815.62
  6. Step 6: Final answer
    x = 6,684.48

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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.