Home / 13,543.39-20,307.64-4,180.83

Finding the Fourth Proportional to 13,543.39, 20,307.64 and 4,180.83

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Solution

The fourth proportional to 13,543.39, 20,307.64 and 4,180.83 is: 6,268.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.39 : 20,307.64 = 4,180.83 : x
  2. Step 2: Convert to fraction form
    13,543.39/20,307.64 = 4,180.83/x
  3. Step 3: Cross multiply
    13,543.39x = 20,307.64 × 4,180.83
  4. Step 4: Simplify right side
    13,543.39x = 84,902,790.54
  5. Step 5: Solve for x
    x = 84,902,790.54/13,543.39
  6. Step 6: Final answer
    x = 6,268.95

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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.