Home / 18,685.74-28,025.88-6,205.49

Finding the Fourth Proportional to 18,685.74, 28,025.88 and 6,205.49

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Solution

The fourth proportional to 18,685.74, 28,025.88 and 6,205.49 is: 9,307.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.74 : 28,025.88 = 6,205.49 : x
  2. Step 2: Convert to fraction form
    18,685.74/28,025.88 = 6,205.49/x
  3. Step 3: Cross multiply
    18,685.74x = 28,025.88 × 6,205.49
  4. Step 4: Simplify right side
    18,685.74x = 173,914,452.33
  5. Step 5: Solve for x
    x = 173,914,452.33/18,685.74
  6. Step 6: Final answer
    x = 9,307.33

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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.