Home / 13,816.66-20,720.93-4,930.55

Finding the Fourth Proportional to 13,816.66, 20,720.93 and 4,930.55

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Solution

The fourth proportional to 13,816.66, 20,720.93 and 4,930.55 is: 7,394.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.66 : 20,720.93 = 4,930.55 : x
  2. Step 2: Convert to fraction form
    13,816.66/20,720.93 = 4,930.55/x
  3. Step 3: Cross multiply
    13,816.66x = 20,720.93 × 4,930.55
  4. Step 4: Simplify right side
    13,816.66x = 102,165,627.05
  5. Step 5: Solve for x
    x = 102,165,627.05/13,816.66
  6. Step 6: Final answer
    x = 7,394.38

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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.