Home / 12,563.80-18,845.70-9,465.55

Finding the Fourth Proportional to 12,563.80, 18,845.70 and 9,465.55

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Solution

The fourth proportional to 12,563.80, 18,845.70 and 9,465.55 is: 14,198.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563.80 : 18,845.70 = 9,465.55 : x
  2. Step 2: Convert to fraction form
    12,563.80/18,845.70 = 9,465.55/x
  3. Step 3: Cross multiply
    12,563.80x = 18,845.70 × 9,465.55
  4. Step 4: Simplify right side
    12,563.80x = 178,384,915.64
  5. Step 5: Solve for x
    x = 178,384,915.64/12,563.80
  6. Step 6: Final answer
    x = 14,198.33

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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.